/* CSSVariantEngine v3.0 — pgsoft-web-link.com.cn */
/* Variant: card-mosaic | Effect: sharp-edges */
/* Palette: cobalt/navy + marigold on cool gray | Radius: crisp corners | Shadow: hard offset */
/* Transition: snappy 0.15s */
/* Section layouts: {"news":"grid-3","features":"grid-3","hero":"minimal","testimonials":"stacked","partners":"grid-4","faq":"single-column","stats":"grid-4","cta":"centered"} */

:root {
    --color-primary: #2456c4;
    --color-primary-dark: #0d2a6b;
    --color-accent: #f5a623;
    --color-surface: #ffffff;
    --color-canvas: #edf1f6;
    --color-text: #152033;
    --color-ink: #0d2a6b;
    --rgb-primary: 36,86,196;
    --rgb-accent: 245,166,35;
    --radius-sm: 0;
    --radius-md: 0;
    --radius-lg: 0;
    --radius-xl: 0;
    --shadow-sm: 0 0 0 2px var(--color-ink), 2px 2px 0 0 var(--color-ink);
    --shadow-md: 0 0 0 2px var(--color-ink), 4px 4px 0 0 var(--color-ink);
    --shadow-lg: 0 0 0 2px var(--color-ink), 6px 6px 0 0 var(--color-ink);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.5rem;
    --transition: 0.15s ease-out;
    --heading-weight: 600;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    background-color: var(--color-canvas);
    line-height: var(--body-line-height);
}

h1, h2, h3, h4 { font-weight: var(--heading-weight); }

section, .section {
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
}

.card, [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    background-color: var(--color-surface);
    padding: var(--space-card);
    transition: var(--transition);
}

.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
}

/* ========== Section Layout Variants ========== */

/* news: grid-3 */
/* 三列等宽网格 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-gap);
}

/* features: grid-3 */
.feature-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-gap);
}

/* hero: minimal */
.hero { padding: 2rem 0; }
.hero-content { max-width: 560px; }

/* testimonials: stacked */
/* 垂直堆叠 */
.testimonial-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-gap);
    max-width: 720px;
    margin: 0 auto;
}

/* partners: grid-4 */
.partner-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: calc(var(--space-gap) * 1.5);
    align-items: center;
}

/* faq: single-column */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

/* stats: grid-4 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-gap);
    text-align: center;
}

/* cta: centered */
.cta-inner {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
.page-main {
    max-width: 1200px;
    margin: 0 auto;
}

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.hero, [class*="hero"], section:first-of-type {
    background: linear-gradient(135deg, #0d2a6b 0%, #2456c4 100%);
}

header, .header, .navbar {
    box-shadow: 0 2px 0 0 var(--color-ink);
}

/* Responsive */
@media (max-width: 1024px) {
    .news-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .feature-list { grid-template-columns: repeat(2, 1fr) !important; }
    .partner-grid { grid-template-columns: repeat(3, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .hero-inner { grid-template-columns: 1fr !important; }
}

@media (max-width: 640px) {
    :root {
        --space-section: 2rem;
        --space-card: 1rem;
        --space-gap: 0.75rem;
    }
    .news-grid { grid-template-columns: 1fr !important; }
    .feature-list { grid-template-columns: 1fr !important; }
    .faq-list { grid-template-columns: 1fr !important; }
    .testimonial-list { column-count: 1 !important; }
    .partner-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .cta-inner { grid-template-columns: 1fr !important; }
}