/* CSSVariantEngine v3.0 — centered-stage / glow-effects */
:root {
    --color-primary: #6d28d9;
    --color-primary-dark: #3b0764;
    --color-accent: #e3b341;
    --color-surface: #fffaf0;
    --color-text: #241b3e;
    --color-bg: #0f0f1a;
    --color-body-text: #ede7f8;
    --rgb-primary: 109,40,217;
    --rgb-accent: 227,179,65;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 18px;
    --radius-xl: 26px;
    --shadow-sm: 0 2px 8px rgba(15,15,26,.25), 0 0 16px rgba(var(--rgb-accent), .08);
    --shadow-md: 0 12px 28px rgba(15,15,26,.3), 0 0 28px rgba(var(--rgb-accent), .12);
    --shadow-lg: 0 24px 50px rgba(15,15,26,.38), 0 0 42px rgba(var(--rgb-accent), .18);
    --space-section: 3.5rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.35s cubic-bezier(.22,1,.36,1);
    --heading-weight: 600;
    --body-line-height: 1.6;
    accent-color: var(--color-accent);
    caret-color: var(--color-accent);
}

/* 基础覆盖 */
body { background-color: var(--color-bg); background-image: radial-gradient(ellipse at 50% 0%, #1e1836 0%, #0f0f1a 68%); color: var(--color-body-text); 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"] { background: linear-gradient(145deg, var(--color-surface) 0%, #fff3d9 100%); color: var(--color-text); border-radius: var(--radius-lg); box-shadow: var(--shadow-md), inset 0 0 0 1px rgba(var(--rgb-accent), .14); padding: var(--space-card); transition: var(--transition); }
.btn, button[class*="btn"], a[class*="btn"] { background: linear-gradient(135deg, #f2c94c 0%, #d4af37 100%); color: #1c1626; border-radius: var(--radius-md); box-shadow: 0 6px 18px rgba(227,179,65,.35), 0 0 24px rgba(227,179,65,.12); transition: var(--transition); }
a:not([class]) { color: var(--color-primary); text-decoration-color: var(--color-accent); transition: var(--transition); }

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

/* news: masonry-2 */
/* 两列瀑布流 */
.news-grid { column-count: 2; column-gap: var(--space-gap); }
.news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }

/* features: centered */
/* 居中大卡片 */
.feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

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

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
.faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

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

/* cta: card-style */
.cta-inner { background: linear-gradient(145deg, var(--color-surface), #ffeaa7); border-radius: var(--radius-xl); box-shadow: 0 18px 44px rgba(15,15,26,.35), 0 0 40px rgba(var(--rgb-accent), .14); padding: 3rem; text-align: center; }

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(15,15,26,.35), 0 0 44px rgba(var(--rgb-accent), .22); }
.hero, [class*="hero"], section:first-of-type { background: radial-gradient(120% 80% at 50% 0%, rgba(var(--rgb-accent), .16) 0%, transparent 55%), linear-gradient(135deg, #221a3e 0%, #0f0f1a 70%); text-shadow: 0 1px 12px rgba(0,0,0,.25); animation: glow-pulse 5s ease-in-out infinite; }
.card { border-left: 3px solid var(--color-accent); }
header, .header, .navbar { background: rgba(15,15,26,.72); color: var(--color-body-text); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }

@keyframes glow-pulse {
    0%, 100% { box-shadow: 0 0 26px rgba(var(--rgb-accent), .18), 0 0 60px rgba(var(--rgb-primary), .12); }
    50% { box-shadow: 0 0 48px rgba(var(--rgb-accent), .32), 0 0 90px rgba(var(--rgb-primary), .22); }
}

/* 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; }
}