/* CSSVariantEngine v3.0 — go-mangguotiyu-qq.com.cn */
/* Palette: vibrant-mosaic | Radius: sharp | Shadow: hard-offset */
/* Spacing: medium-gap | Transition: snappy */
/* Section layouts: {"news":"featured-top","features":"grid-4","hero":"centered","testimonials":"grid-3","partners":"scroll","faq":"two-column","stats":"grid-4","cta":"split"} */

:root {
    --color-primary: #d62828;
    --color-primary-dark: #780000;
    --color-accent: #f77f00;
    --color-surface: #fefae0;
    --color-text: #1d3557;
    --rgb-primary: 214,40,40;
    --rgb-accent: 247,127,0;
    --radius-sm: 0px;
    --radius-md: 2px;
    --radius-lg: 3px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0px rgba(0,0,0,0.18);
    --shadow-md: 4px 4px 0px rgba(0,0,0,0.22);
    --shadow-lg: 6px 6px 0px rgba(0,0,0,0.28);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.75rem;
    --transition: 0.15s ease-out;
    --heading-weight: 800;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: var(--color-surface); }
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: 3px solid var(--color-primary-dark); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background-color: #ffffff; }
.btn, button[class*="btn"], a[class*="btn"] { border: 2px solid var(--color-primary-dark); border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-accent); color: #ffffff; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-thickness: 2px; }

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

/* news: featured-top */
/* 首篇横跨全宽 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
                .news-grid > *:first-child { grid-column: span 3; background-color: #fff2cc; border-color: #f59e0b; }
                .news-grid > *:nth-child(2) { background-color: #ffe0e0; border-color: #ef4444; }
                .news-grid > *:nth-child(3) { background-color: #e0f2fe; border-color: #3b82f6; }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }
.feature-list > *:nth-child(1) { background-color: #ecfccb; border-color: #84cc16; }
.feature-list > *:nth-child(2) { background-color: #fce7f3; border-color: #ec4899; }
.feature-list > *:nth-child(3) { background-color: #fef3c7; border-color: #f59e0b; }
.feature-list > *:nth-child(4) { background-color: #cffafe; border-color: #06b6d4; }

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.testimonial-list > *:nth-child(odd) { background-color: #f0fdf4; border-color: #22c55e; }
.testimonial-list > *:nth-child(even) { background-color: #fef2f2; border-color: #ef4444; }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 14s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }
.faq-list .card { background-color: #f8fafc; border-color: #64748b; }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid .card { background-color: #eff6ff; border-color: #2563eb; }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; background-color: var(--color-accent); border: 3px solid var(--color-primary-dark); border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); padding: 3rem; }

/* Page Layout: wide */
/* 超宽 */
            .page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover { transform: translate(-3px, -3px); box-shadow: 7px 7px 0px rgba(0,0,0,0.3); }
.btn:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-sm); }

/* 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; }
}