/* CSSVariantEngine v3.0 — m3-xmpandacom.cn */
/* Palette: violet-gold stage | Radius: pillowy | Shadow: soft */
/* Spacing: airy | Transition: gentle */
/* Section layouts: {"news":"grid-3","features":"grid-4","hero":"split","testimonials":"stacked","partners":"scroll","faq":"two-column","stats":"big-number","cta":"split"} */

:root {
    --color-primary: #8b5cf6;
    --color-primary-dark: #4c1d95;
    --color-accent: #f0a92e;
    --color-surface: #fdf9f2;
    --color-text: #201a30;
    --color-text-bright: #ebe6f6;
    --color-stage: #0f0f1a;
    --rgb-primary: 139,92,246;
    --rgb-accent: 240,169,46;
    --radius-sm: 12px;
    --radius-md: 18px;
    --radius-lg: 24px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 10px rgba(20,14,40,.08), 0 1px 3px rgba(20,14,40,.05);
    --shadow-md: 0 16px 32px rgba(20,14,40,.10), 0 4px 12px rgba(20,14,40,.06);
    --shadow-lg: 0 40px 80px rgba(20,14,40,.16), 0 16px 32px rgba(20,14,40,.08);
    --space-section: 4.5rem;
    --space-card: 1.75rem;
    --space-gap: 1.5rem;
    --transition: 0.45s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.7;
    accent-color: var(--color-accent);
    caret-color: var(--color-accent);
}

/* 基础覆盖 */
body { color: var(--color-text-bright); line-height: var(--body-line-height); background: var(--color-stage); }
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), inset 0 1px 0 rgba(255,255,255,.6); padding: var(--space-card); transition: var(--transition); background: var(--color-surface); color: var(--color-text); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 0 4px 18px rgba(var(--rgb-primary), .32); }
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-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }

/* hero: split */
/* 左文右图 */
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2.25rem; align-items: center; }

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

/* partners: scroll */
/* 自动滚动 */
.partner-grid { display: flex; gap: 2.25rem; overflow: hidden; animation: partnerScroll 26s 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); }

/* stats: big-number */
/* 大数字居中 */
.stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2.25rem; }
.stats-grid .stat-value { font-size: 3rem; }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2.25rem; }

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); }
.hero, [class*="hero"], section:first-of-type { background: radial-gradient(circle at 50% 25%, var(--color-primary-dark) 0%, #191238 48%, var(--color-stage) 100%); }
.card { border: 1px solid rgba(var(--rgb-accent), .20); }
header, .header, .navbar { background: rgba(15, 15, 26, .78); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: 0 8px 32px rgba(15, 15, 26, .35); }

/* 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: 2.25rem; --space-card: 1.125rem; --space-gap: 0.875rem; --radius-lg: 18px; --radius-md: 14px; --shadow-md: 0 10px 20px rgba(20,14,40,.10), 0 3px 8px rgba(20,14,40,.06); }
    .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; }
}