/* ============================================================
 * Nova UI —— 后台管理界面样式
 *
 * 设计目标：
 *   1. 保留 Layui 的视觉习惯（侧边栏 + 顶栏 + 卡片 + 表格），上手无门槛
 *   2. 全部基于 CSS 变量，一套代码支持明暗两套主题
 *   3. 零依赖：不引 jQuery、不引第三方 CSS 框架
 *
 * 目录
 *   01 设计令牌      07 表单
 *   02 基础重置      08 表格
 *   03 布局          09 徽章与标签
 *   04 侧边栏        10 分页
 *   05 顶栏          11 弹层与提示
 *   06 卡片与面板    12 工具类
 * ============================================================ */

/* ========== 01 设计令牌 ========== */
:root {
    /* 暗色主题（默认） */
    --nv-bg: #0d1117;
    --nv-bg-subtle: #161b22;
    --nv-bg-hover: #1c2129;
    --nv-panel: #161b22;
    --nv-panel-hover: #1c2129;

    --nv-border: #30363d;
    --nv-border-light: #21262d;

    --nv-text: #c9d1d9;
    --nv-text-strong: #e6edf3;
    --nv-text-muted: #8b949e;
    --nv-text-disabled: #6e7681;

    --nv-primary: #1f6feb;
    --nv-primary-hover: #388bfd;
    --nv-primary-active: #1a5fc8;
    --nv-primary-soft: rgba(31, 111, 235, .15);

    --nv-success: #238636;
    --nv-success-hover: #2ea043;
    --nv-success-soft: rgba(35, 134, 54, .15);

    --nv-danger: #f85149;
    --nv-danger-hover: #ff6a60;
    --nv-danger-soft: rgba(248, 81, 73, .15);

    --nv-warning: #d29922;
    --nv-warning-hover: #e3b341;
    --nv-warning-soft: rgba(210, 153, 34, .15);

    --nv-info: #58a6ff;
    --nv-info-soft: rgba(88, 166, 255, .15);

    /* 尺寸 */
    --nv-radius: 6px;
    --nv-radius-lg: 10px;
    --nv-radius-sm: 4px;

    --nv-sidebar-width: 220px;
    --nv-sidebar-collapsed: 60px;
    --nv-header-height: 56px;

    --nv-gap: 16px;

    /* 字体 */
    --nv-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --nv-font-mono: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", monospace;

    /* 阴影 */
    --nv-shadow: 0 3px 12px rgba(0, 0, 0, .3);
    --nv-shadow-lg: 0 12px 40px rgba(0, 0, 0, .45);

    --nv-transition: .18s ease;
}

/* 亮色主题 */
[data-theme="light"] {
    --nv-bg: #f0f2f5;
    --nv-bg-subtle: #f6f8fa;
    --nv-bg-hover: #eaeef2;
    --nv-panel: #ffffff;
    --nv-panel-hover: #f6f8fa;

    --nv-border: #d0d7de;
    --nv-border-light: #e4e8ed;

    --nv-text: #24292f;
    --nv-text-strong: #1f2328;
    --nv-text-muted: #57606a;
    --nv-text-disabled: #8c959f;

    --nv-primary: #0969da;
    --nv-primary-hover: #0860ca;
    --nv-primary-active: #0757ba;
    --nv-primary-soft: rgba(9, 105, 218, .1);

    --nv-success: #1a7f37;
    --nv-success-hover: #1a883f;
    --nv-success-soft: rgba(26, 127, 55, .1);

    --nv-danger: #cf222e;
    --nv-danger-hover: #a40e26;
    --nv-danger-soft: rgba(207, 34, 46, .1);

    --nv-warning: #9a6700;
    --nv-warning-hover: #bf8700;
    --nv-warning-soft: rgba(212, 167, 44, .15);

    --nv-info: #0969da;
    --nv-info-soft: rgba(9, 105, 218, .1);

    --nv-shadow: 0 1px 6px rgba(31, 35, 40, .1);
    --nv-shadow-lg: 0 8px 28px rgba(31, 35, 40, .16);
}

/* ========== 02 基础重置 ========== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
}

body {
    background: var(--nv-bg);
    color: var(--nv-text);
    font: 14px/1.6 var(--nv-font);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--nv-primary);
    text-decoration: none;
    transition: color var(--nv-transition);
}

a:hover {
    color: var(--nv-primary-hover);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0 0 12px;
    color: var(--nv-text-strong);
    font-weight: 600;
    line-height: 1.35;
}

h1 { font-size: 22px; }
h2 { font-size: 19px; }
h3 { font-size: 16px; }
h4 { font-size: 15px; }

p {
    margin: 0 0 12px;
}

hr {
    height: 1px;
    margin: 16px 0;
    border: 0;
    background: var(--nv-border-light);
}

code,
pre {
    font-family: var(--nv-font-mono);
    font-size: 13px;
}

code {
    padding: 2px 6px;
    border-radius: var(--nv-radius-sm);
    background: var(--nv-bg-hover);
    color: var(--nv-info);
}

pre {
    padding: 12px 14px;
    overflow: auto;
    border-radius: var(--nv-radius);
    background: var(--nv-bg-subtle);
    border: 1px solid var(--nv-border-light);
}

::selection {
    background: var(--nv-primary);
    color: #fff;
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    border-radius: 4px;
    background: var(--nv-border);
}

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

/* ========== 03 布局 ========== */
.nv-layout {
    display: flex;
    min-height: 100vh;
}

.nv-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--nv-transition);
}

.nv-content {
    flex: 1;
    padding: var(--nv-gap);
    overflow-x: hidden;
}

/* ========== 顶栏 ========== */
.nv-topbar {
    position: sticky;
    top: 0;
    z-index: 90;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    height: var(--nv-header-height);
    padding: 0 16px;
    background: var(--nv-panel);
    border-bottom: 1px solid var(--nv-border);
}
.nv-topbar-left,
.nv-topbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}
.nv-topbar-right {
    margin-left: auto;
}
/* 桌面端隐藏移动菜单按钮（仅窄屏显示，见响应式） */
.nv-icon-btn[data-mobile-nav] {
    display: none;
}

/* 顶栏内的面包屑不应带下边距，否则 flex 居中会把文字顶高（看着偏上） */
.nv-topbar .nv-breadcrumb {
    margin-bottom: 0;
}

/* 语言切换器：图标旁显示当前语言代码（如 ZH / EN） */
.nv-lang-current {
    margin-left: 4px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .5px;
}

/* 登录页这类独立页面 */
.nv-center {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
    background:
        radial-gradient(ellipse at top, var(--nv-primary-soft), transparent 60%),
        var(--nv-bg);
}

/* ========== 04 侧边栏 ========== */
.nv-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    width: var(--nv-sidebar-width);
    display: flex;
    flex-direction: column;
    background: var(--nv-bg-subtle);
    border-right: 1px solid var(--nv-border);
    transition: width var(--nv-transition);
}

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

/* 收起时主内容跟着收窄 */
.nv-layout:not(.is-collapsed) .nv-main {
    margin-left: var(--nv-sidebar-width);
}

.nv-layout.is-collapsed .nv-main {
    margin-left: var(--nv-sidebar-collapsed);
}

.nv-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    height: var(--nv-header-height);
    padding: 0 16px;
    border-bottom: 1px solid var(--nv-border);
    overflow: hidden;
    white-space: nowrap;
}

.nv-brand-logo {
    flex: none;
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    border-radius: var(--nv-radius);
    background: linear-gradient(135deg, var(--nv-primary), var(--nv-info));
    color: #fff;
    font-weight: 800;
    font-size: 15px;
}

.nv-brand-text {
    font-size: 15px;
    font-weight: 700;
    color: var(--nv-text-strong);
    letter-spacing: .3px;
}

.nv-brand-version {
    padding: 1px 6px;
    border-radius: 10px;
    background: var(--nv-primary-soft);
    color: var(--nv-primary);
    font-size: 11px;
    font-weight: 600;
}

.nv-nav {
    flex: 1;
    padding: 10px 0;
    overflow-y: auto;
    overflow-x: hidden;
}

.nv-nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    height: 40px;
    margin: 1px 8px;
    padding: 0 10px;
    border-radius: var(--nv-radius);
    color: var(--nv-text-muted);
    cursor: pointer;
    white-space: nowrap;
    transition: background var(--nv-transition), color var(--nv-transition);
}

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

.nv-nav-item.is-active {
    background: var(--nv-primary-soft);
    color: var(--nv-primary);
    font-weight: 600;
}

.nv-nav-icon {
    flex: none;
    width: 18px;
    text-align: center;
    font-size: 15px;
}

.nv-nav-title {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nv-nav-arrow {
    flex: none;
    font-size: 11px;
    transition: transform var(--nv-transition);
}

.nv-nav-group.is-open > .nv-nav-item .nv-nav-arrow {
    transform: rotate(90deg);
}

.nv-nav-sub {
    display: none;
    padding-left: 4px;
}

.nv-nav-group.is-open > .nv-nav-sub {
    display: block;
}

.nv-nav-sub .nv-nav-item {
    height: 36px;
    padding-left: 34px;
    font-size: 13px;
}

/* 收起态：只留图标 */
.nv-layout.is-collapsed .nv-nav-title,
.nv-layout.is-collapsed .nv-nav-arrow,
.nv-layout.is-collapsed .nv-brand-text,
.nv-layout.is-collapsed .nv-brand-version {
    display: none;
}

.nv-layout.is-collapsed .nv-nav-sub .nv-nav-item {
    padding-left: 10px;
}

/* 收起态内容只有图标，放开裁剪，否则悬浮飞出的子菜单会被 overflow 裁掉看不见 */
.nv-layout.is-collapsed .nv-nav {
    overflow: visible;
}

/* 收起态：分组作为飞出定位锚点 */
.nv-layout.is-collapsed .nv-nav-group {
    position: relative;
}

/* 收起态：子菜单默认不内联显示（避免隐藏标题后堆出空白方框），仅悬浮飞出 */
.nv-layout.is-collapsed .nv-nav-group.is-open > .nv-nav-sub {
    display: none;
}

/* 收起后悬浮展开：紧贴分组右侧、与分组顶部对齐，消除缝隙导致的闪动/无法选中 */
.nv-layout.is-collapsed .nv-nav-group:hover > .nv-nav-sub {
    position: absolute;
    left: 100%;
    top: 0;
    margin: 0;
    display: block;
    min-width: 180px;
    padding: 6px;
    border-radius: var(--nv-radius);
    background: var(--nv-panel);
    border: 1px solid var(--nv-border);
    box-shadow: var(--nv-shadow-lg);
    z-index: 200;
}

.nv-layout.is-collapsed .nv-nav-group:hover > .nv-nav-sub .nv-nav-title {
    display: block;
}

/* ========== 05 顶栏 ========== */
.nv-header {
    display: flex;
    align-items: center;
    gap: 12px;
    height: var(--nv-header-height);
    padding: 0 var(--nv-gap);
    background: var(--nv-panel);
    border-bottom: 1px solid var(--nv-border);
}

.nv-header-title {
    flex: 1;
    min-width: 0;
}

.nv-header-title h1 {
    margin: 0;
    font-size: 17px;
}

.nv-icon-btn {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border: 0;
    border-radius: var(--nv-radius);
    background: transparent;
    color: var(--nv-text-muted);
    cursor: pointer;
    font-size: 15px;
    transition: background var(--nv-transition), color var(--nv-transition);
}

/* 作为链接（新窗口打开等）时去掉下划线、保持方块造型 */
a.nv-icon-btn {
    text-decoration: none;
}

.nv-icon-btn:hover {
    background: var(--nv-bg-hover);
    color: var(--nv-text-strong);
}

/* 下拉 */
.nv-dropdown {
    position: relative;
}

.nv-dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    z-index: 200;
    min-width: 170px;
    padding: 6px;
    border-radius: var(--nv-radius);
    background: var(--nv-panel);
    border: 1px solid var(--nv-border);
    box-shadow: var(--nv-shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: opacity var(--nv-transition), transform var(--nv-transition), visibility var(--nv-transition);
}

.nv-dropdown.is-open .nv-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nv-dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: var(--nv-radius-sm);
    color: var(--nv-text);
    white-space: nowrap;
    cursor: pointer;
}

.nv-dropdown-item:hover {
    background: var(--nv-bg-hover);
    color: var(--nv-text-strong);
}

.nv-dropdown-item.is-danger {
    color: var(--nv-danger);
}

.nv-dropdown-item.is-danger:hover {
    background: var(--nv-danger-soft);
}

.nv-dropdown-divider {
    height: 1px;
    margin: 5px 0;
    background: var(--nv-border-light);
}

/* 用户入口 */
.nv-user {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 10px 4px 4px;
    border-radius: 20px;
    cursor: pointer;
    transition: background var(--nv-transition);
}

.nv-user:hover {
    background: var(--nv-bg-hover);
}

.nv-avatar {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--nv-primary), var(--nv-info));
    color: #fff;
    font-weight: 700;
    font-size: 13px;
    overflow: hidden;
}

.nv-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.nv-user-name {
    font-size: 13px;
    color: var(--nv-text);
}

/* 面包屑 */
.nv-breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: var(--nv-gap);
    font-size: 13px;
    color: var(--nv-text-muted);
}

.nv-breadcrumb span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.nv-breadcrumb i {
    font-size: 10px;
    opacity: .6;
}

/* ========== 06 卡片与面板 ========== */
.nv-card {
    margin-bottom: var(--nv-gap);
    border-radius: var(--nv-radius-lg);
    background: var(--nv-panel);
    border: 1px solid var(--nv-border);
    overflow: hidden;
}

.nv-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--nv-border);
}

.nv-card-header h2,
.nv-card-header h3 {
    margin: 0;
    font-size: 15px;
}

.nv-card-title {
    flex: 1;
    min-width: 0;
}

.nv-card-body {
    padding: 18px;
}

.nv-card-body.is-flush {
    padding: 0;
}

.nv-card-footer {
    padding: 12px 18px;
    border-top: 1px solid var(--nv-border);
    background: var(--nv-bg-subtle);
}

.nv-card-footer:has(> .nv-pager) {
    padding: 0;
}

.nv-card-footer > .nv-pager {
    border-top: 0;
}

/* 统计卡片 */
.nv-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--nv-gap);
    margin-bottom: var(--nv-gap);
}

.nv-stat {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px;
    border-radius: var(--nv-radius-lg);
    background: var(--nv-panel);
    border: 1px solid var(--nv-border);
    transition: transform var(--nv-transition), border-color var(--nv-transition);
}

.nv-stat:hover {
    transform: translateY(-2px);
    border-color: var(--nv-primary);
}

.nv-stat-icon {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: var(--nv-radius-lg);
    font-size: 20px;
    background: var(--nv-primary-soft);
    color: var(--nv-primary);
}

.nv-stat-icon.is-success { background: var(--nv-success-soft); color: var(--nv-success); }
.nv-stat-icon.is-warning { background: var(--nv-warning-soft); color: var(--nv-warning); }
.nv-stat-icon.is-danger  { background: var(--nv-danger-soft);  color: var(--nv-danger); }

.nv-stat-body {
    min-width: 0;
}

.nv-stat-label {
    font-size: 13px;
    color: var(--nv-text-muted);
}

.nv-stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--nv-text-strong);
    line-height: 1.2;
}

/* ========== 07 表单 ========== */
.nv-form {
    max-width: 720px;
}

/* 全宽表单：站点信息等长表单撑满内容区，避免右侧大片空白 */
.nv-form.is-full {
    max-width: none;
}

.nv-field {
    margin-bottom: 18px;
}

.nv-label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--nv-text);
}

.nv-label .nv-required {
    margin-right: 3px;
    color: var(--nv-danger);
}

.nv-input,
.nv-select,
.nv-textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--nv-border);
    border-radius: var(--nv-radius);
    background: var(--nv-bg-subtle);
    color: var(--nv-text);
    font: inherit;
    outline: 0;
    transition: border-color var(--nv-transition), box-shadow var(--nv-transition), background var(--nv-transition);
}

.nv-input:hover,
.nv-select:hover,
.nv-textarea:hover {
    border-color: var(--nv-text-disabled);
}

.nv-input:focus,
.nv-select:focus,
.nv-textarea:focus {
    border-color: var(--nv-primary);
    box-shadow: 0 0 0 3px var(--nv-primary-soft);
    background: var(--nv-panel);
}

.nv-input::placeholder,
.nv-textarea::placeholder {
    color: var(--nv-text-disabled);
}

.nv-input:disabled,
.nv-select:disabled,
.nv-textarea:disabled {
    background: var(--nv-bg-hover);
    color: var(--nv-text-disabled);
    cursor: not-allowed;
}

.nv-input.is-error,
.nv-select.is-error,
.nv-textarea.is-error {
    border-color: var(--nv-danger);
}

.nv-input.is-error:focus {
    box-shadow: 0 0 0 3px var(--nv-danger-soft);
}

.nv-textarea {
    min-height: 90px;
    resize: vertical;
}

.nv-select {
    appearance: none;
    padding-right: 32px;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path fill='%238b949e' d='M6 8.5L1.5 4h9z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 11px center;
    cursor: pointer;
}

.nv-help {
    margin-top: 5px;
    font-size: 12px;
    color: var(--nv-text-muted);
}

.nv-error-text {
    margin-top: 5px;
    font-size: 12px;
    color: var(--nv-danger);
}

/* 行内表单（搜索栏） */
.nv-form-inline {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 10px;
}

.nv-form-inline .nv-field {
    margin-bottom: 0;
    min-width: 150px;
}

.nv-form-inline > .nv-input,
.nv-form-inline > .nv-select {
    width: auto;
    min-width: 140px;
    flex: 0 1 auto;
}

.nv-form-inline > .nv-btn {
    flex: 0 0 auto;
}

/* 复选 / 单选 */
.nv-check {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    cursor: pointer;
    user-select: none;
}

.nv-check input {
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--nv-primary);
    cursor: pointer;
}

.nv-check-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
}

/* 开关 */
.nv-switch {
    position: relative;
    display: inline-block;
    width: 34px;
    height: 18px;
    flex: none;
}

.nv-switch input {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    cursor: pointer;
}

.nv-switch-slider {
    position: absolute;
    inset: 0;
    border-radius: 22px;
    background: var(--nv-border);
    transition: background var(--nv-transition);
    pointer-events: none;
}

.nv-switch-slider::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #fff;
    transition: transform var(--nv-transition);
}

.nv-switch input:checked + .nv-switch-slider {
    background: var(--nv-primary);
}

.nv-switch input:checked + .nv-switch-slider::before {
    transform: translateX(16px);
}

.nv-switch input:disabled {
    cursor: not-allowed;
}

/* 按钮 */
.nv-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 34px;
    padding: 0 16px;
    border: 1px solid transparent;
    border-radius: var(--nv-radius);
    background: var(--nv-bg-hover);
    color: var(--nv-text);
    font: inherit;
    font-size: 13px;
    white-space: nowrap;
    cursor: pointer;
    transition: background var(--nv-transition), border-color var(--nv-transition),
                color var(--nv-transition), opacity var(--nv-transition);
}

.nv-btn:hover {
    opacity: .88;
}

.nv-btn:active {
    transform: translateY(1px);
}

.nv-btn:disabled {
    opacity: .5;
    cursor: not-allowed;
}

.nv-btn.is-primary { background: var(--nv-primary); color: #fff; }
.nv-btn.is-success { background: var(--nv-success); color: #fff; }
.nv-btn.is-danger  { background: var(--nv-danger);  color: #fff; }
.nv-btn.is-warning { background: var(--nv-warning); color: #fff; }

.nv-btn.is-plain {
    background: transparent;
    border-color: var(--nv-border);
}

.nv-btn.is-plain:hover {
    border-color: var(--nv-primary);
    color: var(--nv-primary);
    background: var(--nv-primary-soft);
}

.nv-btn.is-text {
    background: transparent;
    padding: 0 8px;
    color: var(--nv-primary);
}

.nv-btn.is-sm {
    height: 28px;
    padding: 0 11px;
    font-size: 12px;
}

.nv-btn.is-lg {
    height: 40px;
    padding: 0 22px;
    font-size: 15px;
}

.nv-btn.is-block {
    width: 100%;
}

.nv-btn.is-loading {
    pointer-events: none;
    opacity: .7;
}

.nv-btn.is-loading::before {
    content: '';
    width: 13px;
    height: 13px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: nv-spin .6s linear infinite;
}

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

.nv-btn-group {
    display: inline-flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ========== 08 表格 ========== */
.nv-table-wrap {
    overflow-x: auto;
}

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

.nv-table th,
.nv-table td {
    padding: 11px 14px;
    text-align: left;
    border-bottom: 1px solid var(--nv-border-light);
    vertical-align: middle;
}

.nv-table th {
    background: var(--nv-bg-subtle);
    color: var(--nv-text-muted);
    font-weight: 600;
    white-space: nowrap;
}

.nv-table tbody tr {
    transition: background var(--nv-transition);
}

.nv-table tbody tr:hover {
    background: var(--nv-bg-hover);
}

.nv-table tbody tr:last-child td {
    border-bottom: 0;
}

.nv-table.is-bordered th,
.nv-table.is-bordered td {
    border: 1px solid var(--nv-border-light);
}

.nv-table td.is-actions {
    white-space: nowrap;
    text-align: right;
}

.nv-table .nv-check input {
    width: 15px;
    height: 15px;
}

/* 菜单排序：上移/下移按钮 + 拖拽态 */
.nv-sort-actions {
    display: inline-flex;
    gap: 4px;
    white-space: nowrap;
}
.nv-sort-btn {
    width: 24px;
    height: 24px;
    line-height: 1;
    padding: 0;
    font-size: 11px;
    color: var(--nv-text-muted, #8b949e);
    background: var(--nv-bg-subtle, #f3f4f6);
    border: 1px solid var(--nv-border-light, #e3e6ea);
    border-radius: 4px;
    cursor: pointer;
    transition: background .15s, color .15s, border-color .15s;
}
.nv-sort-btn:hover {
    color: var(--nv-text, #222);
    background: rgba(120, 140, 200, 0.16);
    border-color: rgba(120, 140, 200, 0.6);
}
.nv-sort-btn:disabled {
    opacity: 0.5;
    cursor: default;
}
.nv-table tbody tr.is-dragging {
    opacity: 0.4;
}
.nv-table tbody tr.is-drop-target > td {
    box-shadow: inset 0 2px 0 0 rgba(120, 140, 200, 0.95);
}
.nv-table tbody tr.is-drop-target.is-drop-after > td {
    box-shadow: inset 0 -2px 0 0 rgba(120, 140, 200, 0.95);
}
.nv-table tbody tr.is-drop-into > td {
    box-shadow: inset 0 0 0 2px rgba(59, 130, 246, 0.55);
    background: rgba(59, 130, 246, 0.06);
}

/* 菜单管理：树形缩进（无竖线） */
.nv-menu-table tbody tr.is-root > td:first-child {
    font-weight: 500;
}
.nv-menu-tree {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 28px;
    vertical-align: middle;
    padding-left: calc(var(--menu-depth, 0) * 20px);
}
.nv-menu-tree .nv-menu-name {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.nv-menu-twist {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    margin: 0;
    padding: 0;
    flex: none;
    border: 0;
    border-radius: 4px;
    background: transparent;
    color: var(--nv-text-muted);
    cursor: pointer;
    line-height: 1;
    transition: background var(--nv-transition, .15s), color var(--nv-transition, .15s), transform .15s;
}
.nv-menu-twist:hover {
    background: var(--nv-hover, rgba(0, 0, 0, 0.05));
    color: var(--nv-text);
}
.nv-menu-twist.is-placeholder {
    visibility: hidden;
    pointer-events: none;
    cursor: default;
}
.nv-menu-table tbody tr.is-collapsed > td .nv-menu-twist {
    transform: rotate(-90deg);
}
.nv-menu-table tbody tr.is-tree-hidden {
    display: none !important;
}
.nv-menu-table tbody tr.has-children .nv-menu-name strong {
    letter-spacing: 0.01em;
}
.nv-menu-table tbody tr.is-child {
    background: transparent;
}
.nv-menu-table tbody tr.is-child:hover {
    background: var(--nv-hover, rgba(0, 0, 0, 0.03));
}

/* 手机竖屏：菜单表转为卡片式，避免 6 列横向滚动 / 列挤压 */
@media (max-width: 600px) {
    .nv-table.has-cards thead {
        display: none;
    }
    .nv-table.has-cards,
    .nv-table.has-cards tbody,
    .nv-table.has-cards tr,
    .nv-table.has-cards td {
        display: block;
        width: 100%;
    }
    .nv-table.has-cards tr {
        margin-bottom: 12px;
        border: 1px solid var(--nv-border-light);
        border-radius: var(--nv-radius);
        background: var(--nv-panel);
        overflow: hidden;
    }
    .nv-table.has-cards tbody tr:last-child {
        margin-bottom: 0;
    }
    /* 子菜单用左侧色条标识层级 */
    .nv-table.has-cards tr.is-child {
        border-left: 3px solid var(--nv-primary-soft, #c9d4f5);
    }
    .nv-table.has-cards td {
        position: relative;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        /* 覆盖子级 inline 缩进（padding-left:36px），保证卡片内对齐 */
        padding: 10px 14px !important;
        border-bottom: 1px solid var(--nv-border-light);
        text-align: right;
        white-space: normal;
    }
    .nv-table.has-cards tbody tr td:last-child {
        border-bottom: 0;
    }
    /* 每个单元格左显示字段名 */
    .nv-table.has-cards td::before {
        content: attr(data-label);
        flex: none;
        font-weight: 600;
        font-size: 12px;
        color: var(--nv-text-muted);
        text-align: left;
    }
    .nv-table.has-cards .nv-menu-name {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .nv-table.has-cards .nv-row-actions {
        display: inline-flex;
        gap: 8px;
        flex-wrap: wrap;
        justify-content: flex-end;
    }
    .nv-table.has-cards .nv-sort-actions {
        justify-content: flex-end;
    }
    /* 卡片内长文本（如日志地址 / 目录路径）改为换行，避免 nowrap 截断 */
    .nv-table.has-cards td.nv-ellipsis {
        white-space: normal;
        overflow: visible;
        text-overflow: clip;
        word-break: break-all;
    }
    /* 选择列（管理员列表的勾选框）：保持左标签 + 右侧控件对齐 */
    .nv-table.has-cards td[data-label="选择"] {
        white-space: normal;
    }
}

/* 空状态 */
.nv-empty {
    padding: 60px 20px;
    text-align: center;
    color: var(--nv-text-muted);
}

.nv-empty i {
    display: block;
    margin-bottom: 12px;
    font-size: 40px;
    opacity: .35;
}

/* ========== 09 徽章与标签 ========== */
.nv-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 500;
    line-height: 1.6;
    background: var(--nv-bg-hover);
    color: var(--nv-text-muted);
}

.nv-badge.is-primary { background: var(--nv-primary-soft); color: var(--nv-primary); }
.nv-badge.is-success { background: var(--nv-success-soft); color: var(--nv-success); }
.nv-badge.is-danger  { background: var(--nv-danger-soft);  color: var(--nv-danger); }
.nv-badge.is-warning { background: var(--nv-warning-soft); color: var(--nv-warning); }
.nv-badge.is-info    { background: var(--nv-info-soft);    color: var(--nv-info); }

.nv-badge .nv-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

.nv-badge.is-success .nv-dot { box-shadow: 0 0 0 3px var(--nv-success-soft); }
.nv-badge.is-danger  .nv-dot { box-shadow: 0 0 0 3px var(--nv-danger-soft); }
.nv-badge.is-warning .nv-dot { box-shadow: 0 0 0 3px var(--nv-warning-soft); }

/* ========== 10 分页 ========== */
.nv-pager {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 18px;
    border-top: 1px solid var(--nv-border);
}

.nv-pager-info {
    font-size: 13px;
    color: var(--nv-text-muted);
}

.nv-pager-info b {
    color: var(--nv-primary);
}

.nv-pager-links {
    display: flex;
    align-items: center;
    gap: 5px;
}

.nv-pager-item {
    display: grid;
    place-items: center;
    min-width: 32px;
    height: 32px;
    padding: 0 8px;
    border: 1px solid var(--nv-border);
    border-radius: var(--nv-radius);
    color: var(--nv-text);
    font-size: 13px;
    transition: all var(--nv-transition);
}

.nv-pager-item:hover {
    border-color: var(--nv-primary);
    color: var(--nv-primary);
}

.nv-pager-item.is-active {
    background: var(--nv-primary);
    border-color: var(--nv-primary);
    color: #fff;
    font-weight: 600;
}

.nv-pager-item.is-disabled {
    opacity: .45;
    cursor: not-allowed;
    border-color: var(--nv-border);
    color: var(--nv-text-disabled);
}

.nv-pager-item.is-gap {
    border: 0;
    cursor: default;
    color: var(--nv-text-disabled);
}

/* ========== 11 弹层与提示 ========== */
/* Toast */
.nv-toast-layer {
    position: fixed;
    top: 20px;
    left: 50%;
    z-index: 3000;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.nv-toast {
    display: flex;
    align-items: center;
    gap: 9px;
    min-width: 220px;
    max-width: 460px;
    padding: 11px 18px;
    border-radius: var(--nv-radius);
    background: var(--nv-panel);
    border: 1px solid var(--nv-border);
    box-shadow: var(--nv-shadow-lg);
    font-size: 13px;
    pointer-events: auto;
    animation: nv-toast-in .22s ease;
}

.nv-toast.is-out {
    animation: nv-toast-out .18s ease forwards;
}

.nv-toast i {
    font-size: 15px;
}

.nv-toast.is-success { border-left: 3px solid var(--nv-success); }
.nv-toast.is-success i { color: var(--nv-success); }
.nv-toast.is-error   { border-left: 3px solid var(--nv-danger); }
.nv-toast.is-error i { color: var(--nv-danger); }
.nv-toast.is-warning { border-left: 3px solid var(--nv-warning); }
.nv-toast.is-warning i { color: var(--nv-warning); }
.nv-toast.is-info    { border-left: 3px solid var(--nv-info); }
.nv-toast.is-info i { color: var(--nv-info); }

@keyframes nv-toast-in {
    from { opacity: 0; transform: translateY(-14px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes nv-toast-out {
    to { opacity: 0; transform: translateY(-10px); }
}

/* Modal */
.nv-mask {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(0, 0, 0, .55);
    backdrop-filter: blur(2px);
}

.nv-mask.is-open {
    display: flex;
    animation: nv-fade-in .16s ease;
}

.nv-modal {
    width: 100%;
    max-width: 560px;
    max-height: 88vh;
    display: flex;
    flex-direction: column;
    border-radius: var(--nv-radius-lg);
    background: var(--nv-panel);
    border: 1px solid var(--nv-border);
    box-shadow: var(--nv-shadow-lg);
    animation: nv-modal-in .2s ease;
}

.nv-modal.is-lg { max-width: 820px; }
.nv-modal.is-sm { max-width: 400px; }

@keyframes nv-fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes nv-modal-in {
    from { opacity: 0; transform: scale(.96) translateY(-10px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

.nv-modal-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 20px;
    border-bottom: 1px solid var(--nv-border);
}

.nv-modal-header h3 {
    flex: 1;
    margin: 0;
    font-size: 15px;
}

.nv-modal-close {
    border: 0;
    background: transparent;
    color: var(--nv-text-muted);
    font-size: 16px;
    cursor: pointer;
    line-height: 1;
    padding: 4px;
}

.nv-modal-close:hover {
    color: var(--nv-text-strong);
}

.nv-modal-body {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

.nv-modal-body.is-flush {
    padding: 0;
}

.nv-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 14px 20px;
    border-top: 1px solid var(--nv-border);
    background: var(--nv-bg-subtle);
}

/* 静态提示条（服务端渲染的闪存消息） */
.nv-alert {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: var(--nv-gap);
    padding: 11px 15px;
    border-radius: var(--nv-radius);
    font-size: 13px;
    border: 1px solid transparent;
}

.nv-alert i {
    margin-top: 2px;
}

.nv-alert.is-success {
    background: var(--nv-success-soft);
    border-color: var(--nv-success);
    color: var(--nv-success);
}

.nv-alert.is-error {
    background: var(--nv-danger-soft);
    border-color: var(--nv-danger);
    color: var(--nv-danger);
}

.nv-alert.is-warning {
    background: var(--nv-warning-soft);
    border-color: var(--nv-warning);
    color: var(--nv-warning);
}

.nv-alert.is-info {
    background: var(--nv-info-soft);
    border-color: var(--nv-info);
    color: var(--nv-info);
}

/* Tabs（下划线式，保留兼容） */
.nv-tabs {
    display: flex;
    gap: 2px;
    border-bottom: 1px solid var(--nv-border);
    margin-bottom: 18px;
}

.nv-tab {
    padding: 10px 18px;
    border: 0;
    border-bottom: 2px solid transparent;
    background: transparent;
    color: var(--nv-text-muted);
    font: inherit;
    font-size: 14px;
    cursor: pointer;
    transition: color var(--nv-transition), border-color var(--nv-transition);
}

.nv-tab:hover {
    color: var(--nv-text-strong);
}

.nv-tab.is-active {
    color: var(--nv-primary);
    border-bottom-color: var(--nv-primary);
    font-weight: 600;
}

.nv-tab-pane {
    display: none;
}

.nv-tab-pane.is-active {
    display: block;
}

/* 应用市场 / 订单查询：页签样式（与子站插件中心 nv-market-tabs 同款） */
.nv-purchase {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.nv-purchase-body {
    flex: 1 1 auto;
    min-width: 0;
}
.nv-market-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
    margin: 0 0 16px;
    padding-bottom: 1px;
    border-bottom: 1px solid var(--nv-border);
}
.nv-market-tabs.is-sub {
    margin-top: -8px;
    margin-bottom: 14px;
}
.nv-purchase .nv-config-tabs.is-sub {
    margin-top: 0;
    margin-bottom: 12px;
    padding-bottom: 8px;
}
.nv-purchase .nv-config-tabs.is-sub:last-of-type {
    margin-bottom: 16px;
}
.nv-market-tabs .nv-tab {
    padding: 9px 18px;
    border-radius: 6px 6px 0 0;
    border: 1px solid var(--nv-border);
    border-bottom: 2px solid transparent;
    background: transparent;
    color: var(--nv-text-muted);
    text-decoration: none;
    font: inherit;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    cursor: pointer;
    transition: color var(--nv-transition), border-color var(--nv-transition), background var(--nv-transition);
}
.nv-market-tabs .nv-tab i {
    font-size: 13px;
}
.nv-market-tabs .nv-tab:hover {
    color: var(--nv-text-strong);
}
.nv-market-tabs .nv-tab.is-active {
    background: var(--nv-panel);
    color: var(--nv-primary);
    font-weight: 600;
    border-color: var(--nv-border);
    border-bottom-color: var(--nv-primary);
}
@media (max-width: 600px) {
    .nv-market-tabs .nv-tab {
        flex: 1;
        justify-content: center;
        text-align: center;
    }
}

/* 横向页签（与子站「基本配置」nv-config-tabs 同款；一级页签见上方 nv-market-tabs） */
.nv-config {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.nv-config-tabs {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 6px;
    align-items: center;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--nv-border);
    padding: 0 0 10px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.nv-config-tabs.is-sub {
    border-bottom-color: transparent;
    padding-bottom: 0;
    margin-top: -4px;
}

.nv-config-tab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid transparent;
    color: var(--nv-text);
    text-decoration: none;
    font-size: 14px;
    line-height: 1.2;
    white-space: nowrap;
}

.nv-config-tab i {
    width: 18px;
    text-align: center;
    color: var(--nv-text-muted);
}

.nv-config-tab:hover {
    background: var(--nv-hover, rgba(0, 0, 0, 0.04));
}

.nv-config-tab.is-active {
    background: var(--nv-primary);
    color: #fff;
    border-color: var(--nv-primary);
}

.nv-config-tab.is-active i,
.nv-config-tab.is-active .nv-text-muted {
    color: rgba(255, 255, 255, 0.9);
}

.nv-config-body {
    flex: 1 1 auto;
    min-width: 0;
}

@media (max-width: 900px) {
    .nv-config-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
    }

    .nv-config-tab {
        flex: 0 0 auto;
    }
}

@media (max-width: 600px) {
    .nv-config-tab {
        padding: 8px 11px;
        font-size: 13px;
    }
}

/* ========== 12 工具类 ========== */
.nv-flex { display: flex; }
.nv-flex-1 { flex: 1; min-width: 0; }
.nv-items-center { align-items: center; }
.nv-justify-between { justify-content: space-between; }
.nv-gap-8 { gap: 8px; }
.nv-gap-12 { gap: 12px; }
.nv-wrap { flex-wrap: wrap; }
.nv-col { flex-direction: column; }

.nv-mt-0 { margin-top: 0 !important; }
.nv-mt-8 { margin-top: 8px; }
.nv-mt-16 { margin-top: 16px; }
.nv-mb-0 { margin-bottom: 0 !important; }
.nv-mb-8 { margin-bottom: 8px; }
.nv-mb-16 { margin-bottom: 16px; }

.nv-text-muted { color: var(--nv-text-muted); }
.nv-text-danger { color: var(--nv-danger); }
.nv-text-success { color: var(--nv-success); }
.nv-text-warning { color: var(--nv-warning); }
.nv-text-center { text-align: center; }
.nv-text-right { text-align: right; }
.nv-text-sm { font-size: 13px; }
.nv-text-xs { font-size: 12px; }
.nv-text-bold { font-weight: 600; }
.nv-mono { font-family: var(--nv-font-mono); }

.nv-copy-wrap {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    max-width: 100%;
    white-space: nowrap;
}
.nv-copy-wrap > span {
    word-break: normal;
}
.nv-copy-wrap .nv-btn {
    flex-shrink: 0;
    padding: 2px 8px;
}

.nv-nowrap { white-space: nowrap; }
.nv-ellipsis {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nv-hidden { display: none !important; }

/* 简易柱状图（仪表盘趋势用，纯 CSS 实现） */
.nv-chart {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    height: 160px;
    padding-top: 10px;
}

.nv-chart-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    height: 100%;
    justify-content: flex-end;
}

.nv-chart-bar {
    width: 100%;
    max-width: 42px;
    min-height: 3px;
    border-radius: 4px 4px 0 0;
    background: linear-gradient(180deg, var(--nv-primary), var(--nv-primary-soft));
    transition: height .4s ease, filter var(--nv-transition);
}

.nv-chart-col:hover .nv-chart-bar {
    filter: brightness(1.25);
}

.nv-chart-value {
    font-size: 12px;
    font-weight: 600;
    color: var(--nv-text);
}

.nv-chart-label {
    font-size: 11px;
    color: var(--nv-text-muted);
}

/* 响应式 */
@media (max-width: 900px) {
    .nv-sidebar {
        transform: translateX(-100%);
    }

    .nv-layout.is-mobile-open .nv-sidebar {
        transform: translateX(0);
    }

    .nv-layout .nv-main,
    .nv-layout.is-collapsed .nv-main,
    .nv-layout:not(.is-collapsed) .nv-main {
        margin-left: 0;
    }

    .nv-mask.is-nav {
        display: none;
    }

    .nv-layout.is-mobile-open .nv-mask.is-nav {
        display: block;
    }

    /* 窄屏显示移动菜单按钮，隐藏侧栏收起按钮 */
    .nv-icon-btn[data-mobile-nav] {
        display: grid;
    }
    .nv-icon-btn[data-nav-toggle] {
        display: none;
    }
}

/* ============================================================
 * 13. 页面通用组件（模板用）
 * ============================================================ */

/* 页面标题区 */
.nv-page-head {
    margin-bottom: 16px;
}
.nv-page-title {
    font-size: 20px;
    font-weight: 600;
    margin: 0;
}
.nv-page-desc {
    margin-top: 4px;
    color: var(--nv-text-muted);
    font-size: 13px;
}

/* 两栏栅格 */
.nv-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
@media (max-width: 900px) {
    .nv-grid-2 {
        grid-template-columns: 1fr;
    }
}

/* 信息列表 */
.nv-info {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.nv-info-row {
    display: flex;
    align-items: baseline;
    font-size: 14px;
    gap: 12px;
}
.nv-info-label {
    flex: 0 0 96px;
    color: var(--nv-text-muted);
}
.nv-info-row > span:last-child {
    color: var(--nv-text);
    word-break: break-all;
}

/* 面包屑分隔符 */
.nv-breadcrumb-sep {
    margin: 0 6px;
    color: var(--nv-text-muted);
}

/* 批量操作条 */
.nv-batch-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: var(--nv-primary-soft);
    border-bottom: 1px solid var(--nv-border);
    font-size: 13px;
}
.nv-batch-bar b {
    color: var(--nv-primary);
    margin: 0 2px;
}

/* 侧边栏图标间距 */
.nv-nav-item .nv-nav-icon {
    width: 18px;
    text-align: center;
    margin-right: 8px;
    flex: 0 0 18px;
}

/* ============================================================
 * 14. 登录页
 * ============================================================ */
.nv-login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(1200px 600px at 70% -10%, var(--nv-primary-soft), transparent 60%),
        var(--nv-bg);
}
.nv-login-wrap {
    width: 360px;
    max-width: 92vw;
}
.nv-login-card {
    background: var(--nv-surface);
    border: 1px solid var(--nv-border);
    border-radius: var(--nv-radius-lg);
    padding: 28px 26px;
    box-shadow: var(--nv-shadow);
}
.nv-login-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--nv-primary);
    margin-bottom: 8px;
}
.nv-login-title {
    text-align: center;
    font-size: 16px;
    font-weight: 500;
    color: var(--nv-text-muted);
    margin: 0 0 18px;
}
.nv-login-card .nv-login-tip {
    margin-bottom: 16px;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    background: rgba(31, 111, 235, .12);
    border: 1px solid rgba(31, 111, 235, .28);
    border-radius: 8px;
    color: #8bb4f7;
    font-size: 13px;
}
.nv-login-card .nv-login-tip i {
    margin-top: 0;
    font-size: 14px;
    color: var(--nv-primary);
}
.nv-login-foot {
    margin-top: 16px;
    text-align: center;
    font-size: 12px;
    color: var(--nv-text-muted);
}


/* =========================================================
 * 15. 响应式增强（移动端自适应）
 * 断点：≤900px 平板/手机（侧栏转抽屉）；≤600px 手机竖屏
 * 约定：所有新页面/组件都必须通过这些断点自测
 * ========================================================= */

/* 平板/手机：搜索栏字段占满一行，弹窗贴近边缘 */
@media (max-width: 900px) {
    .nv-form-inline {
        gap: 8px;
    }
    .nv-form-inline .nv-field {
        flex: 1 1 100%;
        min-width: 0;
    }
    .nv-mask {
        padding: 12px;
    }
    .nv-modal {
        max-width: 100%;
    }
}

/* 手机竖屏：弹窗近全屏、隐藏面包屑、表格与卡片更紧凑 */
@media (max-width: 600px) {
    .nv-topbar {
        padding: 0 10px;
        gap: 8px;
    }
    /* 移动端靠侧栏导航，面包屑让位给操作按钮 */
    .nv-breadcrumb {
        display: none;
    }
    .nv-content {
        padding: 12px;
    }
    .nv-mask {
        padding: 0;
    }
    .nv-modal {
        max-width: 100%;
        width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
    }
    .nv-card-header {
        padding: 12px 14px;
    }
    .nv-card-body {
        padding: 14px;
    }
    /* 表格更紧凑，配合 .nv-table-wrap 横向滚动 */
    .nv-table th,
    .nv-table td {
        padding: 9px 10px;
        font-size: 12px;
    }
    .nv-table .nv-check input {
        width: 17px;
        height: 17px;
    }
    /* 按钮在触屏上更易点 */
    .nv-btn {
        min-height: 38px;
    }
}

/* ---------- 市场展示图管理器（对齐子站产品多图：拖拽排序 / 移除删文件） ---------- */
.nv-imager { margin-top: 2px; }
.nv-imager-drop {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 18px 14px;
    text-align: center;
    cursor: pointer;
    border: 1px dashed var(--nv-border);
    border-radius: var(--nv-radius-lg);
    background: var(--nv-bg-subtle);
    color: var(--nv-text-muted);
    transition: border-color .15s, background .15s, color .15s;
}
.nv-imager-drop:hover,
.nv-imager-drop:focus-within {
    border-color: var(--nv-primary);
    background: var(--nv-panel-hover);
    color: var(--nv-text-strong);
}
.nv-imager-drop.is-over {
    border-color: var(--nv-primary);
    background: var(--nv-primary-soft);
    color: var(--nv-text-strong);
}
.nv-imager-drop i.fa { font-size: 20px; }
.nv-imager-drop-text { font-size: 13px; line-height: 1.5; }
.nv-imager-input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}
.nv-imager-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px;
    margin-top: 12px;
}
.nv-img-tile {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--nv-border);
    border-radius: var(--nv-radius);
    background: var(--nv-bg-subtle);
    transition: border-color .15s, box-shadow .15s;
}
.nv-img-tile:hover { border-color: var(--nv-primary); }
.nv-img-tile.is-dragging { opacity: .45; }
.nv-img-tile.is-over {
    border-color: var(--nv-primary);
    box-shadow: 0 0 0 2px var(--nv-primary-soft);
}
.nv-img-drag {
    position: relative;
    cursor: grab;
}
.nv-img-drag:active { cursor: grabbing; }
.nv-img-thumb {
    display: block;
    width: 100%;
    height: 96px;
    object-fit: cover;
    background: #000;
    pointer-events: none;
}
.nv-img-cover,
.nv-img-new {
    position: absolute;
    top: 6px;
    left: 6px;
    padding: 1px 7px;
    border-radius: 999px;
    font-size: 11px;
    line-height: 18px;
    color: #fff;
    pointer-events: none;
}
.nv-img-cover { background: var(--nv-primary); }
.nv-img-new {
    left: auto;
    right: 6px;
    background: var(--nv-success);
}
.nv-img-cover.is-off,
.nv-img-new.is-off { display: none; }
.nv-img-tools {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    gap: 4px;
    padding: 5px;
    background: linear-gradient(transparent, rgba(0, 0, 0, .72));
    opacity: 0;
    transition: opacity .15s;
}
.nv-img-drag:hover .nv-img-tools,
.nv-img-drag:focus-within .nv-img-tools { opacity: 1; }
.nv-img-btn {
    flex: 1;
    min-width: 0;
    height: 26px;
    cursor: pointer;
    color: #fff;
    font-size: 13px;
    line-height: 1;
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: var(--nv-radius-sm);
    background: rgba(13, 17, 23, .72);
    transition: background .15s, border-color .15s;
}
.nv-img-btn:hover {
    background: var(--nv-primary);
    border-color: var(--nv-primary);
}
.nv-img-btn.is-danger:hover {
    background: var(--nv-danger);
    border-color: var(--nv-danger);
}
.nv-img-caption {
    display: block;
    width: 100%;
    box-sizing: border-box;
    border: 0;
    border-top: 1px solid var(--nv-border);
    border-radius: 0;
    padding: 6px 8px;
    font-size: 12px;
    line-height: 1.3;
    background: var(--nv-panel);
    color: var(--nv-text);
    cursor: text;
}
.nv-img-caption:focus {
    outline: 2px solid var(--nv-primary);
    outline-offset: -2px;
}
.nv-imager-empty {
    margin-top: 10px;
    padding: 10px 12px;
    font-size: 12px;
    border-radius: var(--nv-radius);
    background: var(--nv-bg-subtle);
    color: var(--nv-text-muted);
}
.nv-imager-count {
    margin-top: 8px;
    font-size: 12px;
    color: var(--nv-text-muted);
}

@media (hover: none) {
    .nv-img-tools { opacity: 1; }
}
@media (max-width: 900px) {
    .nv-imager-grid { grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); }
    .nv-img-thumb { height: 84px; }
}
@media (max-width: 600px) {
    .nv-imager-grid { grid-template-columns: repeat(auto-fill, minmax(92px, 1fr)); gap: 8px; }
    .nv-img-thumb { height: 74px; }
    .nv-imager-drop { padding: 14px 10px; }
    .nv-imager-drop-text { font-size: 12px; }
    .nv-img-tools { opacity: 1; }
    .nv-img-btn { height: 30px; font-size: 14px; }
}