/* ============================================================
   教务管理系统 - 全局设计系统 v3.0
   Professional Blue · Data-Dense Dashboard · Clean & Modern
   ============================================================ */

/* ========== CSS 变量与设计令牌 ========== */
:root {
    /* 核心品牌色：专业蓝 */
    --primary-color: #2563EB;
    --primary-hover: #1D4ED8;
    --primary-dark: #1E40AF;
    --primary-light: #EFF6FF;
    --primary-light-hover: #DBEAFE;
    --primary-gradient: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%);
    --primary-gradient-subtle: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);

    /* 辅助强调色：专业绿 */
    --accent-color: #059669;
    --accent-hover: #047857;
    --accent-light: #ECFDF5;
    --accent-gradient: linear-gradient(135deg, #059669 0%, #047857 100%);

    /* 基础表面色 */
    --bg-main: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-hover: #F1F5F9;
    --bg-subtle: #F8FAFC;
    --bg-elevated: #FFFFFF;

    /* 文本色 */
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #94A3B8;
    --text-placeholder: #CBD5E1;

    /* 状态色 */
    --success-color: #16A34A;
    --success-light: #F0FDF4;
    --warning-color: #F59E0B;
    --warning-light: #FFFBEB;
    --danger-color: #DC2626;
    --danger-light: #FEF2F2;
    --info-color: #3B82F6;
    --info-light: #EFF6FF;

    /* 边框与圆角 */
    --border-color: #E2E8F0;
    --border-light: #F1F5F9;
    --border-focus: #93C5FD;
    --radius-xs: 3px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 10px;
    --radius-xl: 14px;
    --radius-2xl: 18px;
    --radius-full: 9999px;

    /* 阴影系统 - 一致光源方向(上偏左) */
    --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 6px rgba(15, 23, 42, 0.05), 0 2px 4px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 10px 15px rgba(15, 23, 42, 0.06), 0 4px 6px rgba(15, 23, 42, 0.04);
    --shadow-xl: 0 20px 25px rgba(15, 23, 42, 0.07), 0 8px 10px rgba(15, 23, 42, 0.04);
    --shadow-2xl: 0 25px 50px rgba(15, 23, 42, 0.10);
    --shadow-primary: 0 4px 14px rgba(37, 99, 235, 0.20);
    --shadow-accent: 0 4px 14px rgba(5, 150, 105, 0.18);

    /* 过渡系统 */
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);

    /* 间距系统 (4px基准) */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-2xl: 28px;
    --spacing-3xl: 36px;

    /* 字体系统 */
    --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, system-ui, sans-serif;
    --font-mono: "SF Mono", "Fira Code", "Consolas", "Cascadia Code", monospace;
    --font-size-xs: 11px;
    --font-size-sm: 12px;
    --font-size-base: 13px;
    --font-size-md: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
    --font-size-2xl: 22px;
    --font-size-3xl: 26px;
    --font-size-4xl: 32px;

    /* z-index 层级 */
    --z-sidebar: 40;
    --z-header: 50;
    --z-overlay: 80;
    --z-modal: 100;
    --z-toast: 110;
    --z-tooltip: 120;
}

/* ========== 动画关键帧 ========== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-16px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-16px); }
    to   { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(16px); }
    to   { opacity: 1; transform: translateX(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.94); }
    to   { opacity: 1; transform: scale(1); }
}
@keyframes slideInUp {
    from { opacity: 0; transform: translateY(32px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.55; }
}
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}
@keyframes floatUpDown {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
@keyframes ripple {
    to { transform: scale(4); opacity: 0; }
}

/* 动画应用类 */
.anim-fade   { animation: fadeIn 0.4s ease both; }
.anim-up     { animation: fadeInUp 0.45s cubic-bezier(0.16, 1, 0.3, 1) both; }
.anim-down   { animation: fadeInDown 0.4s cubic-bezier(0.16, 1, 0.3, 1) both; }
.anim-left   { animation: fadeInLeft 0.4s cubic-bezier(0.16, 1, 0.3, 1) both; }
.anim-right  { animation: fadeInRight 0.4s cubic-bezier(0.16, 1, 0.3, 1) both; }
.anim-scale  { animation: scaleIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) both; }
.anim-slide  { animation: slideInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) both; }

/* 交错动画延迟 */
.anim-stagger > *:nth-child(1) { animation-delay: 0.04s; }
.anim-stagger > *:nth-child(2) { animation-delay: 0.08s; }
.anim-stagger > *:nth-child(3) { animation-delay: 0.12s; }
.anim-stagger > *:nth-child(4) { animation-delay: 0.16s; }
.anim-stagger > *:nth-child(5) { animation-delay: 0.20s; }
.anim-stagger > *:nth-child(6) { animation-delay: 0.24s; }
.anim-stagger > *:nth-child(7) { animation-delay: 0.28s; }
.anim-stagger > *:nth-child(8) { animation-delay: 0.32s; }

/* 骨架屏加载 */
.skeleton {
    background: linear-gradient(90deg, #E2E8F0 25%, #F1F5F9 50%, #E2E8F0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.6s infinite;
    border-radius: var(--radius-sm);
}

/* 视图过渡组 */
.view-enter { animation: fadeInUp 0.35s cubic-bezier(0.16, 1, 0.3, 1) both; }
.view-exit  { animation: fadeInDown 0.2s cubic-bezier(0.4, 0, 1, 1) both reverse; }

/* ========== 全局重置 ========== */
*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    background-color: var(--bg-main) !important;
    color: var(--text-primary);
    font-family: var(--font-family);
    line-height: 1.6;
    font-size: var(--font-size-md);
    margin: 0;
    padding: 0;
    font-variant-numeric: tabular-nums;
}

/* ========== 滚动条 ========== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #94A3B8; }

/* 选中文本 */
::selection { background-color: rgba(37, 99, 235, 0.15); color: var(--text-primary); }

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
}

/* ========== LayUI 全局按钮 ========== */
.layui-btn {
    border-radius: var(--radius-sm) !important;
    transition: var(--transition-base) !important;
    font-weight: 500 !important;
    height: 34px !important;
    line-height: 34px !important;
    padding: 0 16px !important;
    font-size: var(--font-size-base) !important;
    background-color: var(--primary-color) !important;
    color: #FFFFFF !important;
    border: none !important;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.2px;
}

.layui-btn::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(255,255,255,0.25) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s;
}
.layui-btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-primary); }
.layui-btn:hover::after { opacity: 1; }
.layui-btn:active { transform: translateY(0) scale(0.98); box-shadow: var(--shadow-sm); }
.layui-btn i { font-size: 14px !important; margin-right: 4px; color: #FFFFFF !important; }

/* 按钮尺寸 */
.layui-btn-xs { height: 24px !important; line-height: 24px !important; padding: 0 8px !important; font-size: var(--font-size-xs) !important; border-radius: var(--radius-xs) !important; }
.layui-btn-sm { height: 30px !important; line-height: 30px !important; padding: 0 12px !important; font-size: var(--font-size-sm) !important; }
.layui-btn-lg { height: 42px !important; line-height: 42px !important; padding: 0 24px !important; font-size: var(--font-size-lg) !important; border-radius: var(--radius-md) !important; }

/* 按钮颜色变体 */
.layui-btn-normal,
.layui-btn-primary,
.layui-btn-success,
#searchBtn,
.layui-btn:not(.layui-btn-danger):not(.layui-btn-warm):not(.layui-btn-primary):not(.layui-btn-normal) {
    background-color: var(--accent-color) !important;
}
.layui-btn-normal:hover,
.layui-btn-primary:hover {
    background-color: var(--accent-hover) !important;
    box-shadow: var(--shadow-accent);
}

/* 操作类按钮 */
.layui-btn-warm,
[lay-event="edit"],
[lay-event="change"],
[lay-event="pass"],
[lay-event="reset"],
.layui-layer-btn .layui-layer-btn0 {
    background-color: var(--primary-color) !important;
}
.layui-btn-warm:hover,
[lay-event="edit"]:hover,
[lay-event="change"]:hover,
[lay-event="pass"]:hover {
    background-color: var(--primary-hover) !important;
    box-shadow: var(--shadow-primary);
}

/* 危险操作 */
.layui-btn-danger,
[lay-event="del"],
[lay-event="reject"] {
    background-color: var(--danger-color) !important;
}
.layui-btn-danger:hover,
[lay-event="del"]:hover,
[lay-event="reject"]:hover {
    background-color: #B91C1C !important;
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.22);
}

/* 禁用状态 */
.layui-btn-disabled,
.layui-btn-disabled:hover {
    opacity: 0.45 !important;
    cursor: not-allowed !important;
    transform: none !important;
    box-shadow: none !important;
}

/* ========== LayUI 表单 ========== */
.layui-input,
.layui-select,
.layui-textarea {
    height: 36px !important;
    line-height: 36px !important;
    border-radius: var(--radius-sm) !important;
    font-size: var(--font-size-base) !important;
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
    background-color: #FFFFFF;
    padding-left: 12px !important;
    color: var(--text-primary);
}
.layui-input:hover,
.layui-textarea:hover { border-color: #94A3B8; }
.layui-input:focus,
.layui-textarea:focus {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.10) !important;
    outline: none !important;
}
.layui-textarea {
    line-height: 1.6 !important;
    padding: 10px 12px !important;
    min-height: 80px;
    resize: vertical;
}
.layui-form-label {
    width: auto !important;
    padding: 8px 12px !important;
    height: 36px !important;
    line-height: 20px !important;
    color: var(--text-secondary);
    font-weight: 500;
}
.layui-input-block { margin-left: 0 !important; min-height: auto !important; }
.layui-form-danger { border-color: var(--danger-color) !important; }

/* ========== LayUI 表格 ========== */
.layui-table {
    border-radius: var(--radius-md) !important;
    overflow: hidden;
    border: 1px solid var(--border-color);
    font-variant-numeric: tabular-nums;
}
.layui-table th {
    background: linear-gradient(180deg, #F8FAFC 0%, #F1F5F9 100%) !important;
    font-weight: 600 !important;
    font-size: var(--font-size-sm) !important;
    color: var(--text-secondary) !important;
    letter-spacing: 0.3px;
    border-bottom: 2px solid var(--border-color) !important;
    padding: 10px 14px !important;
    text-transform: none;
}
.layui-table td {
    padding: 10px 14px !important;
    font-size: var(--font-size-base) !important;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
}
.layui-table tbody tr { transition: var(--transition-fast); }
.layui-table tbody tr:hover { background-color: var(--primary-light) !important; }
.layui-table tbody tr:hover td { background-color: transparent !important; }
.layui-table-click,
.layui-table-hover { background-color: var(--primary-light) !important; }
.layui-table-cell {
    height: auto !important;
    line-height: 1.5 !important;
    padding: 6px 8px !important;
    overflow: visible !important;
    text-overflow: inherit !important;
    white-space: normal !important;
    font-size: var(--font-size-base) !important;
}

/* 表格分页 */
.layui-laypage .layui-laypage-curr .layui-laypage-em {
    background-color: var(--primary-color) !important;
    border-radius: var(--radius-xs) !important;
}
.layui-laypage a:hover { color: var(--primary-color) !important; }

/* ========== LayUI 卡片 ========== */
.layui-card {
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-sm) !important;
    transition: var(--transition-base);
    background-color: var(--bg-card);
    overflow: hidden;
}
.layui-card:hover { box-shadow: var(--shadow-md) !important; }
.layui-card-header {
    background: #FFFFFF !important;
    border-bottom: 1px solid var(--border-color) !important;
    font-weight: 600 !important;
    font-size: var(--font-size-md) !important;
    color: var(--text-primary) !important;
    padding: 14px 20px !important;
    display: flex;
    align-items: center;
    gap: 8px;
}
.layui-card-header i { color: var(--primary-color); font-size: 16px; }
.layui-card-body { padding: 20px !important; }

/* ========== 搜索区域 ========== */
.table-search-fieldset {
    border: 1px solid var(--border-color) !important;
    padding: 18px 20px 10px 20px !important;
    background: var(--bg-card);
    border-radius: var(--radius-md) !important;
    margin-bottom: 16px;
    transition: var(--transition-base);
}
.table-search-fieldset:hover { border-color: #BFDBFE; box-shadow: var(--shadow-xs); }
.table-search-fieldset legend {
    color: var(--text-primary);
    font-weight: 600;
    font-size: var(--font-size-md);
    padding: 0 12px;
    display: flex;
    align-items: center;
    gap: 5px;
}
.table-search-fieldset legend i { color: var(--primary-color); }

/* ========== 侧边栏 ========== */
.layui-nav-tree {
    background-color: #FFFFFF !important;
    border-right: 1px solid var(--border-color);
}
.layui-nav-tree .layui-nav-item a {
    color: var(--text-secondary) !important;
    transition: var(--transition-base);
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
    margin: 2px 10px 2px 0;
    padding: 0 18px !important;
    font-size: var(--font-size-base);
    font-weight: 500;
}
.layui-nav-tree .layui-nav-item a:hover {
    background-color: var(--primary-light) !important;
    color: var(--primary-color) !important;
}
.layui-nav-tree .layui-this,
.layui-nav-tree .layui-this > a {
    background-color: var(--primary-light) !important;
    color: var(--primary-color) !important;
    font-weight: 600 !important;
}
.layui-nav-tree .layui-this::after {
    content: "";
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 50%;
    width: 3px;
    background: var(--primary-gradient);
    border-radius: 3px 0 0 3px;
}
.layui-nav-tree .layui-nav-bar { display: none !important; }

/* ========== 标签 Badge ========== */
.layui-badge,
.layui-badge-rim {
    height: 22px !important;
    line-height: 22px !important;
    padding: 0 10px !important;
    border-radius: var(--radius-full) !important;
    font-size: var(--font-size-xs) !important;
    font-weight: 600 !important;
    display: inline-block !important;
    text-align: center !important;
    border: none !important;
    min-width: 32px !important;
    letter-spacing: 0.3px;
}
.layui-badge-gray,
.layui-bg-gray { background-color: #F1F5F9 !important; color: #64748B !important; }
.layui-bg-blue,
.layui-badge-blue { background-color: var(--primary-color) !important; color: #FFFFFF !important; }
.layui-bg-green,
.layui-badge-green { background: var(--accent-gradient) !important; color: #FFFFFF !important; }
.layui-bg-orange,
.layui-badge-orange { background-color: var(--warning-color) !important; color: #FFFFFF !important; }
.layui-bg-red { background-color: var(--danger-color) !important; }

/* ========== 弹窗 (Layer) ========== */
.layui-layer {
    border-radius: var(--radius-xl) !important;
    box-shadow: var(--shadow-2xl) !important;
    border: 1px solid var(--border-color) !important;
    overflow: hidden !important;
    animation: scaleIn 0.22s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.layui-layer-title {
    background-color: #FFFFFF !important;
    border-bottom: 1px solid var(--border-light) !important;
    color: var(--text-primary) !important;
    font-weight: 600 !important;
    font-size: var(--font-size-lg) !important;
    height: 52px !important;
    line-height: 52px !important;
    padding: 0 24px !important;
}
.layui-layer-content { background-color: #FFFFFF !important; }
.layui-layer-page .layui-layer-content { overflow-y: auto !important; }
.layui-layer-page .layui-layer-content > div:not(.layui-layer-msg-content) {
    padding: 24px 28px !important;
}

/* 消息提示 */
.layui-layer-msg {
    min-width: 100px !important;
    border: none !important;
    background-color: rgba(15, 23, 42, 0.78) !important;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.25) !important;
    border-radius: var(--radius-md) !important;
    backdrop-filter: blur(8px);
}
.layui-layer-msg .layui-layer-content {
    background-color: transparent !important;
    color: #FFFFFF !important;
    padding: 14px 24px !important;
    font-size: var(--font-size-md) !important;
    font-weight: 500 !important;
    text-align: center !important;
}
.layui-layer-msg .layui-layer-padding { padding: 14px 24px 14px 48px !important; text-align: left !important; }
.layui-layer-msg i.layui-layer-ico { background-color: transparent !important; border: none !important; top: 16px !important; left: 16px !important; }

/* 弹窗按钮 */
.layui-layer-btn {
    padding: 16px 24px 20px !important;
    border-top: 1px solid var(--border-light) !important;
    text-align: right !important;
    background-color: #FFFFFF !important;
}
.layui-layer-btn a {
    height: 36px !important;
    line-height: 36px !important;
    padding: 0 22px !important;
    border-radius: var(--radius-sm) !important;
    font-size: var(--font-size-base) !important;
    font-weight: 600 !important;
    transition: var(--transition-base) !important;
    border: none !important;
}
.layui-layer-btn .layui-layer-btn0 {
    background: var(--primary-gradient) !important;
    color: #FFFFFF !important;
}
.layui-layer-btn .layui-layer-btn1,
.layui-layer-btn .layui-layer-btn2 {
    background-color: #F1F5F9 !important;
    color: var(--text-secondary) !important;
}
.layui-layer-btn a:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }

/* 弹窗关闭按钮 */
.layui-layer-setwin { top: 15px !important; right: 18px !important; }
.layui-layer-setwin .layui-layer-close1 {
    opacity: 0.35;
    transition: var(--transition-base);
}
.layui-layer-setwin .layui-layer-close1:hover { opacity: 1; transform: rotate(90deg); }

/* 弹窗内表单 */
.layui-layer-content .layui-form-item { margin-bottom: 18px !important; }
.layui-layer-content .layui-form-label {
    width: 80px !important;
    padding: 9px 15px !important;
    text-align: right !important;
    background-color: transparent !important;
    border: none !important;
}
.layui-layer-content .layui-input-block { margin-left: 110px !important; min-height: 38px !important; }

/* prompt 弹窗 */
.layui-layer-prompt .layui-layer-content { padding: 20px 28px !important; }
.layui-layer-prompt .layui-layer-input {
    display: block !important;
    width: 100% !important;
    height: 42px !important;
    margin: 0 !important;
    border-radius: var(--radius-sm) !important;
}

/* ========== LayUI 选项卡 ========== */
.layui-tab-title li { transition: var(--transition-base); }
.layui-tab-title .layui-this::after {
    background-color: var(--primary-color) !important;
    height: 3px !important;
    border-radius: 3px 3px 0 0 !important;
}

/* ========== 进度条 ========== */
.layui-progress-bar {
    background: var(--primary-gradient) !important;
    border-radius: var(--radius-full) !important;
    transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1) !important;
}
.layui-progress {
    background-color: #E2E8F0 !important;
    border-radius: var(--radius-full) !important;
    height: 8px !important;
}

/* ========== 复选框 ========== */
.layui-form-checkbox[lay-skin="primary"] span { transition: var(--transition-fast); }
.layui-form-checkbox[lay-skin="primary"]:hover span { background-color: var(--primary-light) !important; }
.layui-form-checked[lay-skin="primary"] span {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
}

/* ========== 响应式设计 ========== */
@media screen and (max-width: 992px) {
    .layui-card-body { padding: 15px !important; }
    .layui-table th, .layui-table td { padding: 8px 10px !important; }
}
@media screen and (max-width: 768px) {
    body { font-size: var(--font-size-base); }
    .layui-card-header { padding: 12px 15px !important; font-size: var(--font-size-base) !important; }
    .layui-card-body { padding: 12px !important; }
    .layui-btn { height: 32px !important; line-height: 32px !important; padding: 0 12px !important; font-size: var(--font-size-sm) !important; }
    .layui-input { height: 34px !important; line-height: 34px !important; }
    .table-search-fieldset { padding: 12px 15px 8px 15px !important; }
    .layui-layer { border-radius: var(--radius-md) !important; max-width: 95vw !important; }
}
@media screen and (max-width: 480px) {
    .layui-form-item .layui-inline { display: block !important; margin-bottom: 8px !important; }
    .layui-form-item .layui-inline .layui-form-label { width: 100% !important; text-align: left !important; }
    .layui-form-item .layui-inline .layui-input-inline { width: 100% !important; }
}

/* ========== 工具类 ========== */
.text-primary { color: var(--primary-color) !important; }
.text-accent  { color: var(--accent-color) !important; }
.text-muted   { color: var(--text-muted) !important; }
.text-success { color: var(--success-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-danger  { color: var(--danger-color) !important; }
.bg-primary-light { background-color: var(--primary-light) !important; }
.bg-subtle        { background-color: var(--bg-subtle) !important; }

/* 统一卡片 */
.unified-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
    padding: 20px;
    margin-bottom: 16px;
}
.unified-card:hover { box-shadow: var(--shadow-md); }

/* 数据卡片 */
.data-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
    margin-bottom: 16px;
}
.data-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }

/* 页面头部装饰 */
.page-header-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 0 14px 0;
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
}
.page-header-bar i { color: var(--primary-color); font-size: 20px; }
.page-header-bar::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border-light);
    margin-left: 12px;
}

/* ========== 空状态 ========== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    color: var(--text-muted);
    text-align: center;
}
.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    color: #CBD5E1;
}
.empty-state .empty-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}
.empty-state .empty-desc {
    font-size: var(--font-size-base);
    max-width: 320px;
    line-height: 1.6;
}

/* ========== 加载状态 ========== */
.loading-spinner {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: var(--font-size-base);
}
.loading-spinner::before {
    content: "";
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ========== 聚焦环 (键盘导航) ========== */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    border-radius: var(--radius-xs);
}
.layui-btn:focus-visible,
.layui-input:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 1px;
    border-radius: var(--radius-sm);
}

/* ========== 跳过导航链接 ========== */
.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    background: var(--primary-color);
    color: #FFFFFF;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    z-index: var(--z-tooltip);
    font-weight: 600;
    text-decoration: none;
    transition: top 0.2s;
}
.skip-link:focus { top: 16px; }