/* ==========================================================================
   HyperData 科技蓝设计系统 v2.0
   Tech-Blue Design System - 富有科技感的深色主题
   ==========================================================================
   设计理念：
   - 深邃太空蓝背景 + 青色辉光强调
   - 玻璃拟态（Glassmorphism）卡片
   - 网格背景纹理 + 扫描线动效
   - 完全响应式，无 vw 魔法数字
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root {
    /* 主色调 - 科技蓝 */
    --color-primary: #00d4ff;
    --color-primary-dark: #0099cc;
    --color-primary-glow: rgba(0, 212, 255, 0.4);
    --color-secondary: #0ea5e9;
    --color-accent: #06b6d4;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #3b82f6;

    /* 背景层次 - 深空蓝 */
    --bg-base: #0a0e27;
    --bg-surface: #111936;
    --bg-elevated: #1a2347;
    --bg-card: rgba(26, 35, 71, 0.6);
    --bg-overlay: rgba(10, 14, 39, 0.85);
    --bg-hover: rgba(0, 212, 255, 0.08);

    /* 边框 */
    --border-color: rgba(0, 212, 255, 0.15);
    --border-color-strong: rgba(0, 212, 255, 0.3);
    --border-glow: rgba(0, 212, 255, 0.5);

    /* 文字 */
    --text-primary: #e8f0ff;
    --text-secondary: #a0b3d8;
    --text-muted: #6b7a9f;
    --text-bright: #ffffff;
    --text-accent: #00d4ff;

    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 40px;
    --spacing-2xl: 64px;

    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);
    --shadow-glow-strong: 0 0 30px rgba(0, 212, 255, 0.5);

    /* 字体 */
    --font-family-base: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    --font-family-display: "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-family-mono: "JetBrains Mono", "Consolas", "Courier New", monospace;

    /* 过渡 */
    --transition-fast: all 0.15s ease;
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    /* 布局 */
    --header-height: 64px;
    --max-width: 1400px;
}

/* ---------- 全局重置 ---------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-base);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-base);
    /* 科技感网格背景 */
    background-image:
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        radial-gradient(ellipse at top, rgba(0, 212, 255, 0.08), transparent 50%),
        radial-gradient(ellipse at bottom, rgba(139, 92, 246, 0.05), transparent 50%);
    background-size: 40px 40px, 40px 40px, 100% 100%, 100% 100%;
    background-attachment: fixed;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---------- 布局容器 ---------- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-lg);
}

/* ---------- 顶部导航栏 ---------- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-xl);
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-bright);
    font-size: 1.25rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 0.5px;
}

.navbar-brand::before {
    content: "";
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-glow);
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
    margin: 0;
    padding: 0;
}

.navbar-nav a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
    position: relative;
}

.navbar-nav a:hover {
    color: var(--text-accent);
    background: var(--bg-hover);
}

.navbar-nav a.active {
    color: var(--text-accent);
    background: var(--bg-hover);
}

.navbar-nav a.active::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-glow);
}

/* ---------- 玻璃拟态卡片 ---------- */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    opacity: 0.5;
}

.card:hover {
    border-color: var(--border-color-strong);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-bright);
    margin-bottom: var(--spacing-sm);
}

.card-text {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ---------- 按钮系统 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.65rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    line-height: 1.5;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition-base);
    user-select: none;
    white-space: nowrap;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--bg-base);
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--border-color-strong);
}

.btn-outline:hover {
    background: var(--bg-hover);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: transparent;
}

.btn-ghost:hover {
    color: var(--text-accent);
    background: var(--bg-hover);
}

.btn-danger {
    background: linear-gradient(135deg, var(--color-danger), #dc2626);
    color: white;
}

.btn-danger:hover {
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

.btn-sm {
    padding: 0.35rem 0.85rem;
    font-size: 0.825rem;
}

.btn-lg {
    padding: 0.85rem 2rem;
    font-size: 1.05rem;
}

/* ---------- 表单系统 ---------- */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.3px;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--text-primary);
    background: rgba(10, 14, 39, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    outline: none;
    font-family: inherit;
}

.form-control:focus {
    border-color: var(--color-primary);
    background: rgba(10, 14, 39, 0.8);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
}

.form-control::placeholder {
    color: var(--text-muted);
}

/* ---------- 表格系统 ---------- */
.table-container {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.table thead {
    background: rgba(0, 212, 255, 0.08);
    border-bottom: 1px solid var(--border-color-strong);
}

.table th {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

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

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

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ---------- 分页 ---------- */
.pagination {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
    justify-content: center;
    padding: var(--spacing-lg) 0;
    margin: 0;
}

.pagination li a,
.pagination li span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 var(--spacing-sm);
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: var(--transition-base);
    font-size: 0.9rem;
}

.pagination li a:hover {
    color: var(--text-accent);
    border-color: var(--color-primary);
    background: var(--bg-hover);
}

.pagination li.active a,
.pagination li.active span {
    color: var(--bg-base);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-color: transparent;
    font-weight: 600;
}

/* ---------- 数据指标卡片 ---------- */
.metric-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    position: relative;
    overflow: hidden;
    transition: var(--transition-base);
}

.metric-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--color-primary), transparent);
}

.metric-card:hover {
    border-color: var(--border-color-strong);
    transform: translateY(-2px);
}

.metric-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-bright);
    font-family: var(--font-family-mono);
    line-height: 1.2;
}

.metric-unit {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-left: var(--spacing-xs);
}

/* ---------- 网格系统 ---------- */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* ---------- Flexbox 工具类 ---------- */
.d-flex { display: flex; }
.d-grid { display: grid; }
.d-block { display: block; }
.d-none { display: none; }

.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }

.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-end { justify-content: flex-end; }

.align-items-center { align-items: center; }
.align-items-start { align-items: flex-start; }

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ---------- 文字工具类 ---------- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--text-accent); }
.text-bright { color: var(--text-bright); }

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.5rem; }
.text-2xl { font-size: 2rem; }

/* ---------- 间距工具类 ---------- */
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

/* ---------- 页面标题区 ---------- */
.page-header {
    padding: var(--spacing-2xl) var(--spacing-xl) var(--spacing-xl);
    text-align: center;
    position: relative;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: var(--spacing-md);
    letter-spacing: 1px;
}

.page-header h1 span {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ---------- 标签/徽章 ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.65rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    background: rgba(0, 212, 255, 0.15);
    color: var(--text-accent);
    border: 1px solid var(--border-color);
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
    border-color: rgba(16, 185, 129, 0.3);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
    border-color: rgba(245, 158, 11, 0.3);
}

/* ---------- 动画 ---------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes scan {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100vh); }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 20px rgba(0, 212, 255, 0.3); }
    50% { box-shadow: 0 0 30px rgba(0, 212, 255, 0.6); }
}

.fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

.fade-in-delay-1 { animation: fadeInUp 0.6s ease 0.1s forwards; opacity: 0; }
.fade-in-delay-2 { animation: fadeInUp 0.6s ease 0.2s forwards; opacity: 0; }
.fade-in-delay-3 { animation: fadeInUp 0.6s ease 0.3s forwards; opacity: 0; }
.fade-in-delay-4 { animation: fadeInUp 0.6s ease 0.4s forwards; opacity: 0; }

/* ---------- 扫描线效果（大屏专用） ---------- */
.scan-line {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    opacity: 0.3;
    pointer-events: none;
    z-index: 9999;
    animation: scan 8s linear infinite;
}

/* ---------- 页脚 ---------- */
.footer {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-xl) var(--spacing-lg);
    background: rgba(10, 14, 39, 0.6);
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer a:hover {
    color: var(--text-accent);
}

/* ---------- 可访问性 ---------- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-base);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color-strong);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 24px;
        --spacing-2xl: 40px;
    }

    .navbar {
        padding: 0 var(--spacing-md);
        flex-wrap: wrap;
        height: auto;
        min-height: var(--header-height);
        gap: var(--spacing-sm);
    }

    .navbar-nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-xs);
    }

    .navbar-nav a {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.85rem;
    }

    .container,
    .container-fluid {
        padding: 0 var(--spacing-md);
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .page-header h1 {
        font-size: 1.75rem;
    }

    .page-header p {
        font-size: 1rem;
    }

    .table {
        font-size: 0.85rem;
    }

    .table th,
    .table td {
        padding: var(--spacing-sm);
    }

    .metric-value {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .navbar-brand {
        font-size: 1rem;
    }

    .navbar-brand::before {
        width: 24px;
        height: 24px;
    }

    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
}