@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap");
:root {
    --ep-primary: #1e88e5;
    --ep-primary-dark: #1565c0;
    --ep-primary-light: #e3f2fd;
    --ep-success: #43a047;
    --ep-warning: #fb8c00;
    --ep-danger: #e53935;
    --ep-info: #00acc1;
    --ep-bg: #f0f2f5;
    --ep-sidebar-bg: #001529;
    --ep-sidebar-hover: #0c2135;
    --ep-sidebar-active: var(--ep-primary);
    --ep-text: #333;
    --ep-text-light: #666;
    --ep-text-muted: #999;
    --ep-border: #e8e8e8;
    --ep-card-bg: #fff;
    --ep-shadow: 0 2px 8px rgba(0,0,0,0.08);
    --ep-radius: 6px;
    --ep-sidebar-width: 220px;
    --ep-sidebar-collapsed-width: 64px;
    --ep-header-height: 56px;
    --ep-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    font-size: 14px;
    color: var(--ep-text);
    background: var(--ep-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--ep-primary); text-decoration: none; transition: var(--ep-transition); }
a:hover { color: var(--ep-primary-dark); }
.ep-layout { display: flex; min-height: 100vh; }
.ep-sidebar {
    width: var(--ep-sidebar-width);
    background: var(--ep-sidebar-bg);
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 1000;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 2px 0 8px rgba(0,0,0,0.15);
}
.ep-sidebar.collapsed { width: var(--ep-sidebar-collapsed-width); }
.ep-sidebar-logo {
    height: var(--ep-header-height);
    display: flex;
    align-items: center;
    padding: 0 16px;
    background: rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    white-space: nowrap;
    overflow: hidden;
}
.ep-sidebar-logo h1 {
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    opacity: 1;
    transition: opacity 0.2s;
}
.ep-sidebar.collapsed .ep-sidebar-logo h1 { opacity: 0; }
.ep-sidebar-logo .ep-logo-icon {
    width: 32px;
    height: 32px;
    min-width: 32px;
    background: var(--ep-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    margin-right: 12px;
}
.ep-sidebar.collapsed .ep-sidebar-logo .ep-logo-icon { margin-right: 0; }
.ep-sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 8px 0;
}
.ep-sidebar-nav::-webkit-scrollbar { width: 4px; }
.ep-sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 2px; }
.ep-sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.ep-nav-group { margin-bottom: 4px; }
.ep-nav-group-title {
    padding: 12px 16px 6px;
    font-size: 12px;
    color: rgba(255,255,255,0.35);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
    overflow: hidden;
    transition: opacity 0.2s;
}
.ep-sidebar.collapsed .ep-nav-group-title { opacity: 0; height: 0; padding: 0; }
.ep-nav-item {
    display: flex;
    align-items: center;
    padding: 0 16px;
    height: 40px;
    color: rgba(255,255,255,0.7);
    cursor: pointer;
    transition: var(--ep-transition);
    white-space: nowrap;
    overflow: hidden;
    text-decoration: none;
    margin: 2px 8px;
    border-radius: 6px;
}
.ep-nav-item:hover { background: var(--ep-sidebar-hover); color: #fff; }
.ep-nav-item.active { background: var(--ep-primary); color: #fff; }
.ep-nav-item i {
    font-size: 16px;
    min-width: 20px;
    text-align: center;
    margin-right: 10px;
    transition: margin 0.2s;
}
.ep-sidebar.collapsed .ep-nav-item i { margin-right: 0; }
.ep-nav-item span {
    opacity: 1;
    transition: opacity 0.2s;
    font-size: 14px;
}
.ep-sidebar.collapsed .ep-nav-item span { opacity: 0; }
.ep-sidebar.collapsed .ep-nav-item { justify-content: center; padding: 0; }
.ep-main {
    flex: 1;
    margin-left: var(--ep-sidebar-width);
    transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.ep-sidebar.collapsed ~ .ep-main { margin-left: var(--ep-sidebar-collapsed-width); }
.ep-header {
    height: var(--ep-header-height);
    background: var(--ep-card-bg);
    border-bottom: 1px solid var(--ep-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.ep-header-left { display: flex; align-items: center; gap: 16px; }
.ep-header-right { display: flex; align-items: center; gap: 16px; }
.ep-toggle-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 6px;
    transition: var(--ep-transition);
    color: var(--ep-text-light);
    font-size: 18px;
    border: none;
    background: none;
}
.ep-toggle-btn:hover { background: var(--ep-primary-light); color: var(--ep-primary); }
.ep-breadcrumb { display: flex; align-items: center; gap: 8px; color: var(--ep-text-muted); font-size: 14px; }
.ep-breadcrumb a { color: var(--ep-text-light); }
.ep-breadcrumb a:hover { color: var(--ep-primary); }
.ep-user-info { display: flex; align-items: center; gap: 8px; color: var(--ep-text-light); font-size: 14px; }
.ep-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--ep-primary-light);
    color: var(--ep-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}
.ep-content {
    flex: 1;
    padding: 20px 24px;
    animation: ep-fade-in 0.3s ease;
}
@keyframes ep-fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.ep-footer {
    padding: 16px 24px;
    text-align: center;
    color: var(--ep-text-muted);
    font-size: 12px;
    border-top: 1px solid var(--ep-border);
    background: var(--ep-card-bg);
}
.ep-card {
    background: var(--ep-card-bg);
    border-radius: var(--ep-radius);
    box-shadow: var(--ep-shadow);
    margin-bottom: 20px;
    overflow: hidden;
    transition: var(--ep-transition);
}
.ep-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
.ep-card-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--ep-border);
    font-size: 15px;
    font-weight: 600;
    color: var(--ep-text);
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #fafbfc 0%, #f5f7fa 100%);
}
.ep-card-header i { color: var(--ep-primary); font-size: 16px; }
.ep-card-body { padding: 20px; }
.ep-card-body.layui-form { padding: 20px; }
.ep-table-wrapper { overflow-x: auto; }
.ep-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.ep-toolbar .layui-form-select,
.ep-toolbar .layui-input { margin: 0; }
.ep-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}
.ep-status-badge.success { background: #e8f5e9; color: var(--ep-success); }
.ep-status-badge.danger { background: #ffebee; color: var(--ep-danger); }
.ep-status-badge.warning { background: #fff3e0; color: var(--ep-warning); }
.ep-status-badge.info { background: #e0f7fa; color: var(--ep-info); }
.ep-switch-wrap { display: inline-flex; align-items: center; gap: 8px; }
.ep-switch-label { font-size: 13px; color: var(--ep-text-light); }
.ep-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}
.ep-info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    border-bottom: 1px solid var(--ep-border);
    font-size: 13px;
}
.ep-info-item:last-child { border-bottom: none; }
.ep-info-item .label { color: var(--ep-text-light); }
.ep-info-item .value { color: var(--ep-text); font-weight: 500; }
.ep-progress-bar {
    width: 100%;
    height: 8px;
    background: #e8e8e8;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 4px;
}
.ep-progress-bar .fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.6s ease;
}
.ep-progress-bar .fill.green { background: linear-gradient(90deg, #66bb6a, #43a047); }
.ep-progress-bar .fill.orange { background: linear-gradient(90deg, #ffa726, #fb8c00); }
.ep-progress-bar .fill.red { background: linear-gradient(90deg, #ef5350, #e53935); }
.ep-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}
.ep-stat-card {
    background: var(--ep-card-bg);
    border-radius: var(--ep-radius);
    padding: 20px;
    box-shadow: var(--ep-shadow);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--ep-transition);
}
.ep-stat-card:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0,0,0,0.12); }
.ep-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}
.ep-stat-icon.blue { background: #e3f2fd; color: #1e88e5; }
.ep-stat-icon.green { background: #e8f5e9; color: #43a047; }
.ep-stat-icon.orange { background: #fff3e0; color: #fb8c00; }
.ep-stat-icon.red { background: #ffebee; color: #e53935; }
.ep-stat-icon.cyan { background: #e0f7fa; color: #00acc1; }
.ep-stat-info h3 { font-size: 24px; font-weight: 700; color: var(--ep-text); line-height: 1.2; }
.ep-stat-info p { font-size: 13px; color: var(--ep-text-muted); margin-top: 2px; }
.ep-login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e88e5 0%, #0d47a1 50%, #01579b 100%);
    position: relative;
    overflow: hidden;
}
.ep-login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 60%);
    animation: ep-login-bg 20s linear infinite;
}
@keyframes ep-login-bg {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
.ep-login-card {
    width: 400px;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    position: relative;
    z-index: 1;
    animation: ep-login-slide 0.5s ease;
}
@keyframes ep-login-slide {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.ep-login-logo {
    text-align: center;
    margin-bottom: 32px;
}
.ep-login-logo h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--ep-primary-dark);
    margin-bottom: 4px;
}
.ep-login-logo p { color: var(--ep-text-muted); font-size: 14px; }
.ep-login-card .layui-form-item { margin-bottom: 20px; }
.ep-login-card .layui-input { height: 44px; border-radius: 8px; padding-left: 40px; font-size: 14px; border: 1px solid var(--ep-border); transition: var(--ep-transition); background: #fff; }
.ep-login-card .layui-input:focus { border-color: var(--ep-primary); box-shadow: 0 0 0 3px rgba(30,136,229,0.15); }
.ep-login-card .layui-form-item .layui-input-prefix { line-height: 44px; }
.ep-login-card .layui-input-wrap { position: relative; }
.ep-login-card .layui-input-wrap .layui-input-prefix { position: absolute; left: 0; top: 0; width: 40px; text-align: center; z-index: 2; pointer-events: none; }
.ep-login-btn {
    width: 100%;
    height: 44px;
    background: linear-gradient(135deg, var(--ep-primary), var(--ep-primary-dark));
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--ep-transition);
}
.ep-login-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(30,136,229,0.4); }
.ep-login-captcha { display: flex; gap: 10px; align-items: center; }
.ep-login-captcha img { height: 44px; border-radius: 8px; cursor: pointer; }
.ep-login-footer { text-align: center; margin-top: 24px; color: var(--ep-text-muted); font-size: 12px; }
.ep-login-error {
    text-align: center;
    padding: 20px;
}
.ep-login-error .ep-error-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: #ffebee;
    color: var(--ep-danger);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 16px;
}
.ep-login-error h2 { color: var(--ep-danger); margin-bottom: 8px; }
.ep-login-error p { color: var(--ep-text-light); margin-bottom: 20px; }
.ep-mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    transition: opacity 0.3s;
}
.ep-mobile-overlay.show { display: block; }
.ep-dialog-form { padding: 20px 24px; }
.ep-dialog-form .layui-form-item { margin-bottom: 16px; }
.ep-dialog-form .layui-form-label { width: 90px; font-weight: 500; }
.ep-dialog-form .layui-input-block { margin-left: 120px; }
.ep-dialog-form .layui-input { border: 1px solid var(--ep-border); border-radius: 4px; }
.ep-dialog-form .layui-input:focus { border-color: var(--ep-primary); box-shadow: 0 0 0 3px rgba(30,136,229,0.1); }
.ep-editor-wrap {
    display: flex; flex-direction: column;
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: #1e1e1e;
}
.ep-editor-toolbar {
    display: flex; align-items: center; gap: 12px;
    padding: 6px 16px; background: #2d2d2d; border-bottom: 1px solid #3e3e3e;
    color: #ccc; font-size: 13px; flex-shrink: 0;
}
.ep-editor-info { display: flex; align-items: center; gap: 6px; }
.ep-editor-info i { color: #5eb0ea; }
.ep-editor-charset { color: #888; font-size: 12px; }
.ep-editor-shortcut { color: #666; font-size: 12px; margin-left: auto; }
.ep-editor-body {
    flex: 1; overflow: hidden; position: relative;
}
.ep-editor-body .CodeMirror {
    height: 100%; font-size: 14px; font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}
.ep-upload-area {
    border: 2px dashed var(--ep-border); border-radius: 12px;
    padding: 32px 20px; cursor: pointer; transition: var(--ep-transition);
    text-align: center;
}
.ep-upload-area:hover { border-color: var(--ep-primary); background: var(--ep-primary-light); }
.ep-progress-wrap {
    width: 100%; height: 10px; background: #e8e8e8; border-radius: 5px; overflow: hidden;
}
.ep-progress-bar {
    height: 100%; background: linear-gradient(90deg, #1e88e5, #42a5f5);
    border-radius: 5px; transition: width 0.3s ease;
}
.layui-layer-content .layui-form-radio { margin-right: 16px; }
.layui-layer-content .layui-form-checkbox { margin-right: 8px; }
@media (max-width: 768px) {
    .ep-sidebar {
        transform: translateX(-100%);
        width: var(--ep-sidebar-width) !important;
    }
    .ep-sidebar.mobile-open { transform: translateX(0); }
    .ep-main { margin-left: 0 !important; }
    .ep-content { padding: 12px; }
    .ep-header { padding: 0 12px; }
    .ep-stat-grid { grid-template-columns: 1fr 1fr; }
    .ep-info-grid { grid-template-columns: 1fr; }
    .ep-login-card { width: 90%; padding: 24px; }
    .ep-card-body { padding: 12px; }
    .ep-toolbar { gap: 8px; }
    .ep-toolbar .layui-input-inline { width: 100% !important; }
    .ep-quick-link { padding: 8px 4px; }
    .ep-quick-link i { font-size: 22px; }
    .ep-quick-link span { font-size: 11px; }
    .ep-info-item { flex-direction: column; align-items: flex-start; gap: 4px; }
    .ep-info-item .value { font-size: 12px; }
    .ep-stat-card { padding: 12px; }
    .ep-stat-icon { width: 40px; height: 40px; font-size: 18px; }
    .ep-stat-info h3 { font-size: 18px; }
    .layui-table th, .layui-table td { padding: 6px 8px; font-size: 12px; }
    .ep-header-right .ep-user-info span { display: none; }
}
@media (max-width: 480px) {
    .ep-stat-grid { grid-template-columns: 1fr; }
    .ep-login-card { width: 95%; padding: 16px; }
    .ep-login-logo h1 { font-size: 22px; }
}
@media (min-width: 769px) and (max-width: 1024px) {
    .ep-sidebar { width: var(--ep-sidebar-collapsed-width); }
    .ep-sidebar .ep-nav-group-title { opacity: 0; height: 0; padding: 0; }
    .ep-sidebar .ep-nav-item span { opacity: 0; }
    .ep-sidebar .ep-nav-item { justify-content: center; padding: 0; }
    .ep-sidebar .ep-nav-item i { margin-right: 0; }
    .ep-sidebar .ep-sidebar-logo h1 { opacity: 0; }
    .ep-sidebar .ep-sidebar-logo .ep-logo-icon { margin-right: 0; }
    .ep-main { margin-left: var(--ep-sidebar-collapsed-width); }
}
.ep-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--ep-text-muted);
}
.ep-loading .ep-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--ep-border);
    border-top-color: var(--ep-primary);
    border-radius: 50%;
    animation: ep-spin 0.8s linear infinite;
    margin-right: 8px;
}
@keyframes ep-spin {
    to { transform: rotate(360deg); }
}
.ep-empty {
    text-align: center;
    padding: 40px;
    color: var(--ep-text-muted);
}
.ep-empty i { font-size: 48px; color: var(--ep-border); margin-bottom: 12px; }
.ep-divider {
    height: 1px;
    background: var(--ep-border);
    margin: 16px 0;
}
.ep-text-success { color: var(--ep-success) !important; }
.ep-text-danger { color: var(--ep-danger) !important; }
.ep-text-warning { color: var(--ep-warning) !important; }
.ep-text-muted { color: var(--ep-text-muted) !important; }
.ep-text-primary { color: var(--ep-primary) !important; }
.ep-mb-sm { margin-bottom: 8px; }
.ep-mb-md { margin-bottom: 16px; }
.ep-mb-lg { margin-bottom: 24px; }
.ep-mt-sm { margin-top: 8px; }
.ep-mt-md { margin-top: 16px; }
.ep-mt-lg { margin-top: 24px; }
.ep-text-center { text-align: center; }
.ep-text-right { text-align: right; }
.ep-fs-sm { font-size: 12px; }
.ep-fs-xs { font-size: 11px; }
.layui-table { border-radius: var(--ep-radius); overflow: hidden; }
.layui-table th { background: #f5f7fa; font-weight: 600; color: var(--ep-text); }
.layui-table td { color: var(--ep-text); }
.layui-table tr:hover td { background: var(--ep-primary-light) !important; }
.layui-btn { border-radius: 4px; transition: var(--ep-transition); }
.layui-btn:hover { transform: translateY(-1px); box-shadow: 0 2px 8px rgba(0,0,0,0.15); }
.layui-form-label { font-weight: 500; }
.layui-input, .layui-textarea, .layui-select {
    border-radius: 4px;
    border-color: var(--ep-border);
    transition: var(--ep-transition);
}
.layui-input:focus, .layui-textarea:focus { border-color: var(--ep-primary); box-shadow: 0 0 0 3px rgba(30,136,229,0.1); }
.layui-form-item { margin-bottom: 16px; }
.ep-quick-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 12px 8px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--ep-text-light);
    transition: var(--ep-transition);
    cursor: pointer;
}
.ep-quick-link i {
    font-size: 28px;
    margin-bottom: 6px;
    color: var(--ep-primary);
    transition: var(--ep-transition);
}
.ep-quick-link span {
    font-size: 12px;
    white-space: nowrap;
}
.ep-quick-link:hover {
    background: var(--ep-primary-light);
    color: var(--ep-primary);
    transform: translateY(-2px);
}
.ep-quick-link:hover i {
    transform: scale(1.1);
}
.layui-card { border-radius: var(--ep-radius); box-shadow: var(--ep-shadow); border: none; }
.layui-card-header { border-bottom-color: var(--ep-border); font-weight: 600; }