:root {
    /* zwtj-brand-skill Colors */
    --brand-navy: #1C3461;
    --brand-blue: #2B4E9E;
    --brand-mid: #3D6BC4;
    --brand-light: #6B96D8;
    --brand-pale: #C8DAEF;
    --brand-tint: #EBF2FB;
    --n900: #1A2233;
    --n700: #3D4E68;
    --n500: #6B7A96;
    --n300: #B8C2D4;
    --n100: #EEF1F6;
    --n50: #F7F9FC;
    --white: #FFFFFF;
    --success: #1E7A4E;
    --warning: #A85C00;
    --danger: #B02A2A;

    --font-heading: 'Noto Serif SC', 'STSong', serif;
    --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-mono: 'JetBrains Mono', 'Consolas', monospace;
}

body {
    font-family: var(--font-body);
    background-color: var(--n50);
    color: var(--n900);
    overflow-y: scroll;
}

.font-serif {
    font-family: 'Noto Serif SC', serif;
}

/* Glassmorphism Styles */
.glass-nav {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(200, 218, 239, 0.4);
}

.glass-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 4px 24px -6px rgba(28, 52, 97, 0.06);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px -8px rgba(28, 52, 97, 0.12);
    border-color: rgba(200, 218, 239, 0.8);
}

.glass-img-container {
    border: 1px solid rgba(200, 218, 239, 0.4);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px -10px rgba(28, 52, 97, 0.1);
}

/* Markdown Report Styles */
.report-content h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--brand-navy);
    margin-top: 2rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--n100);
    padding-bottom: 0.5rem;
}

.report-content h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--n900);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.report-content p,
.report-content li {
    margin-bottom: 0.75rem;
    color: var(--n700);
    line-height: 1.8;
}

.report-content ul {
    list-style-type: disc;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.report-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.875rem;
}

.report-table th {
    background-color: var(--brand-navy);
    color: white;
    padding: 12px;
    text-align: left;
    font-weight: 500;
}

.report-table td {
    padding: 12px;
    border-bottom: 1px solid var(--n100);
    color: var(--n700);
}

.report-table tr:nth-child(even) td {
    background-color: var(--brand-tint);
}

.callout {
    background-color: var(--brand-tint);
    border-left: 4px solid var(--brand-blue);
    padding: 16px;
    border-radius: 0 8px 8px 0;
    margin: 1.5rem 0;
}

.callout-warning {
    background-color: #FEF3E2;
    border-left: 4px solid var(--warning);
    padding: 16px;
    border-radius: 0 8px 8px 0;
    margin: 1.5rem 0;
}

strong {
    color: var(--n900);
    font-weight: 700;
}

.highlight-red {
    color: var(--danger);
    font-weight: 700;
}

.highlight-green {
    color: var(--success);
    font-weight: 700;
}

/* =========================================
   Hero 入场动画（CSS keyframe，无需 JS）
   ========================================= */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-animate {
    opacity: 0;
    animation: fadeInUp 0.7s ease forwards;
}

/* =========================================
   滚动触发入场动画（由 shared.js 控制）
   ========================================= */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* 交错延迟（可在元素上用 style="transition-delay: Xs" 覆盖） */
.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }

/* =========================================
   glass-card 变体：禁用上浮 hover 效果
   ========================================= */
.glass-card.no-lift:hover {
    transform: none;
    box-shadow: 0 4px 24px -6px rgba(28, 52, 97, 0.06);
}