/* ============ 暗色玻璃拟态主题 ============ */
:root {
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --card-bg: rgba(255, 255, 255, 0.06);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --accent-gradient: linear-gradient(135deg, #06b6d4, #8b5cf6);
    --accent-1: #06b6d4;
    --accent-2: #8b5cf6;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg-gradient);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
    min-height: 100vh;
}

/* 玻璃拟态卡片 */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 16px;
    transition: transform 0.2s;
}
.card:hover { transform: translateY(-2px); }

.card h2 {
    margin: 0 0 16px 0;
    font-size: 18px;
    color: var(--text-primary);
}

/* 顶部导航 */
.navbar {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    padding: 16px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.navbar a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 6px;
    margin: 0 4px;
    transition: all 0.2s;
}
.navbar a:hover, .navbar a.active {
    background: var(--accent-gradient);
    color: white;
}

/* 大数字卡片 */
.stat-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
}
.stat-card .value {
    font-size: 36px;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-variant-numeric: tabular-nums;
}
.stat-card .label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-top: 8px;
}

/* 网格 */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

/* 表格 */
table.data {
    width: 100%;
    border-collapse: collapse;
}
table.data th, table.data td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--card-border);
}
table.data th {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
}
table.kv th { color: var(--text-secondary); width: 140px; padding: 8px 0; }

/* badge */
.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}
.badge.ok { background: var(--success); color: white; }
.badge.err { background: var(--danger); color: white; }
.badge.warn { background: var(--warning); color: white; }
.badge.muted { background: var(--text-secondary); color: var(--bg-gradient); }

/* button */
button {
    background: var(--accent-gradient);
    color: white;
    border: 0;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: transform 0.2s;
}
button:hover { transform: translateY(-1px); }
button.danger { background: var(--danger); }
button.ghost { background: transparent; border: 1px solid var(--card-border); color: var(--text-primary); }

/* input */
input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
}

/* 文本辅助 */
.muted { color: var(--text-secondary); }
main { padding: 24px 32px; }
header h1 { font-size: 28px; margin: 0 0 24px 0; }

/* 数字滚动 */
@keyframes countUp {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.stat-card .value.animated {
    animation: countUp 1.2s ease-out;
}

/* chart canvas */
.chart-container { position: relative; height: 280px; }

/* Home page 动画 */
.hero {
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero-bg {
    position: absolute; inset: 0; z-index: -1;
    background: radial-gradient(ellipse at top, rgba(6,182,212,0.15), transparent 70%),
                radial-gradient(ellipse at bottom right, rgba(139,92,246,0.15), transparent 70%);
    animation: heroPulse 6s ease-in-out infinite;
}
@keyframes heroPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}
.hero-title { font-size: 64px; margin: 0; line-height: 1.1; }
.gradient-text {
    background: linear-gradient(135deg, #06b6d4, #8b5cf6);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
}
.hero-subtitle { color: var(--text-secondary); font-size: 20px; margin: 16px 0 32px; }
.hero-cta { display: flex; gap: 16px; justify-content: center; }

/* 滚动入场动画 */
.animate-in { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.animate-in.in-view { opacity: 1; transform: translateY(0); }
.animate-in[data-animate="fade-in"] { transform: none; }

/* 卡片 hover 动画 */
.card { transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s; }
.card:hover { transform: translateY(-4px); border-color: rgba(6,182,212,0.5); box-shadow: 0 12px 32px rgba(6,182,212,0.15); }

/* Pro 徽章 */
.pro-badge {
    display: inline-block; padding: 2px 10px; border-radius: 12px;
    font-size: 11px; font-weight: 700;
    background: linear-gradient(135deg, #f59e0b, #ec4899); color: white;
}

/* 卡片图标 */
.card-icon { font-size: 48px; margin-bottom: 16px; }

/* 段落 */
section { padding: 60px 32px; }
.section-title { text-align: center; font-size: 32px; margin: 0 0 40px; }

/* 卡片网格 */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.card-grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.download-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }

/* about 页表格（admin 风格） */
table.kv th { color: var(--text-secondary); width: 140px; padding: 8px 0; text-align: left; }
table.kv td { padding: 8px 0; }

/* 按钮 */
.btn-primary {
    background: var(--accent-gradient);
    color: white;
    border: 0;
    padding: 12px 28px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 16px;
    transition: transform 0.2s;
    text-decoration: none;
    display: inline-block;
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { background: transparent; border: 1px solid var(--card-border); color: var(--text-primary); }

/* 响应式 */
@media (max-width: 640px) {
    .navbar { flex-direction: column; padding: 12px; }
    main { padding: 12px; }
    .hero-title { font-size: 40px; }
    section { padding: 40px 16px; }
}