/* CSSVariantEngine v3.0 — aisports-mobile.com.cn */
/* Palette: centered-stage purple/gold | Radius: rounded-soft | Shadow: glow */
/* Spacing: tight | Transition: smooth */
/* Section layouts: {"news":"grid-3","features":"grid-2","hero":"split","testimonials":"carousel","partners":"centered","faq":"single-column","stats":"grid-3","cta":"split"} */

:root {
    --color-primary: #c4b5fd;
    --color-primary-dark: #7c3aed;
    --color-accent: #fbbf24;
    --color-surface: #1e1b4b;
    --color-text: #f1f5f9;
    --rgb-primary: 196,181,253;
    --rgb-accent: 251,191,36;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 32px;
    --shadow-sm: 0 2px 12px rgba(0,0,0,.35), 0 0 0 1px rgba(124,58,237,.15);
    --shadow-md: 0 12px 32px rgba(0,0,0,.45), 0 0 24px rgba(124,58,237,.08);
    --shadow-lg: 0 32px 64px rgba(0,0,0,.55), 0 0 48px rgba(251,191,36,.08);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(circle at 50% -20%, #312e81 0%, #0f0f1a 70%); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #f8fafc; }
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), inset 0 0 0 1px rgba(139,92,246,.28); padding: var(--space-card); transition: var(--transition); background: linear-gradient(145deg, #2e1065 0%, #1e1b4b 60%, #0f0f1a 100%); color: #e2e8f0; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%); color: #0f0f1a; box-shadow: 0 6px 28px rgba(251,191,36,.35), inset 0 0 0 1px rgba(255,255,255,.25); border-style: solid; border-color: rgba(124,58,237,.45); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 0 14px rgba(196,181,253,.45); }

/* ========== 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-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }

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

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }

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

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: radial-gradient(circle at 15% 30%, rgba(124,58,237,.45) 0%, transparent 55%), radial-gradient(circle at 85% 70%, rgba(251,191,36,.18) 0%, transparent 45%), linear-gradient(135deg, #2e1065 0%, #0f0f1a 60%, #4c1d95 100%); }
.card { border-left: 3px solid var(--color-accent); }

/* 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; --shadow-md: 0 8px 20px rgba(0,0,0,.4); }
    .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; }
}