/* CSSVariantEngine v3.0 — fajiatouzhu.com.cn */
/* Palette: gradient-rich | Radius: soft rounded | Shadow: multi-layer elevation */
/* Spacing: mosaic-balanced | Transition: smooth long */
/* Section layouts: {"news":"featured-top","features":"grid-2","hero":"overlay","testimonials":"stacked","partners":"grid-4","faq":"two-column","stats":"inline","cta":"full-bg"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #4c1d95;
    --color-accent: #f472b6;
    --color-surface: #f0f9ff;
    --color-text: #0f172a;
    --rgb-primary: 124,58,237;
    --rgb-accent: 244,114,182;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 26px;
    --shadow-sm: 0 4px 6px -1px rgba(124, 58, 237, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 25px -3px rgba(124, 58, 237, 0.15), 0 8px 10px -6px rgba(244, 114, 182, 0.08);
    --shadow-lg: 0 25px 50px -12px rgba(124, 58, 237, 0.25), 0 15px 30px -10px rgba(244, 114, 182, 0.12);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1.75rem;
    --transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, #f8fafc 0%, #e0f2fe 100%); }
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); padding: var(--space-card); transition: var(--transition); background: linear-gradient(145deg, #ffffff, #f8fafc); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, #7c3aed, #ec4899); color: white; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== 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: linear-gradient(135deg, #7c3aed 0%, #8b5cf6 40%, #a855f7 100%); color: white; }
                .news-grid > *:nth-child(2) { background: linear-gradient(135deg, #ec4899 0%, #f472b6 100%); color: white; }
                .news-grid > *:nth-child(3) { background: linear-gradient(135deg, #06b6d4 0%, #22d3ee 100%); color: white; }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }
.feature-list > *:nth-child(1) { background: linear-gradient(135deg, #8b5cf6, #6366f1); color: white; }
.feature-list > *:nth-child(2) { background: linear-gradient(135deg, #ec4899, #f43f5e); color: white; }
.feature-list > *:nth-child(3) { background: linear-gradient(135deg, #14b8a6, #10b981); color: white; }
.feature-list > *:nth-child(4) { background: linear-gradient(135deg, #f59e0b, #f97316); color: white; }

/* hero: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; }
                .hero-content { position: relative; z-index: 1; }

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }
                .testimonial-list > *:nth-child(odd) { background: linear-gradient(135deg, rgba(124,58,237,0.1), rgba(236,72,153,0.1)); }
                .testimonial-list > *:nth-child(even) { background: linear-gradient(135deg, rgba(6,182,212,0.1), rgba(20,184,166,0.1)); }

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }
.partner-grid > * { background: linear-gradient(145deg, #ffffff, #f0f9ff); }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }
.faq-list > * { background: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(240,249,255,0.9)); border-image: linear-gradient(135deg, rgba(124,58,237,0.3), rgba(244,114,182,0.3)) 1 stretch; }

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }
                .stats-grid > * { background: linear-gradient(135deg, #4c1d95, #7c3aed); color: white; padding: 1.5rem 2rem; border-radius: var(--radius-lg); }

/* cta: full-bg */
.cta-section { background: linear-gradient(90deg, #4c1d95 0%, #db2777 50%, #0891b2 100%); color: #fff; padding: 4rem 2rem; }

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(120deg, #7c3aed 0%, #ec4899 50%, #06b6d4 100%); }
.card { border: 2px solid transparent; border-image: linear-gradient(135deg, rgba(124,58,237,0.2), rgba(244,114,182,0.2), rgba(6,182,212,0.2)) 1 stretch; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

/* 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; }
}