/* CSSVariantEngine v3.0 — zh-zhizhuzhibo.cn */
/* Palette: deep purple + gold glow | Radius: medium rounded | Shadow: luminous */
/* Spacing: generous | Transition: smooth-glow */
/* Section layouts: {"news":"featured-top","features":"grid-4","hero":"split","testimonials":"masonry","partners":"grid-4","faq":"two-column","stats":"grid-3","cta":"card-style"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #6d28d9;
    --color-accent: #ffd700;
    --color-surface: #1a1a2e;
    --color-text: #f0f0ff;
    --rgb-primary: 124, 58, 237;
    --rgb-accent: 255, 215, 0;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 2px 12px rgba(var(--rgb-accent), 0.15);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.4);
    --shadow-lg: 0 8px 40px rgba(var(--rgb-accent), 0.35);
    --space-section: 4rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.7;
}

@keyframes subtlePulse {
    0%, 100% { box-shadow: 0 0 20px rgba(var(--rgb-accent), 0.3); }
    50% { box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.55); }
}

/* 基础覆盖 */
body { background-color: #0f0f1a; color: var(--color-text); line-height: var(--body-line-height); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 0 12px rgba(var(--rgb-accent), 0.2); }
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-color: var(--color-surface); border-left: 3px solid var(--color-accent); }
.card:hover, [class*="card"]:hover { box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.6); transform: translateY(-2px); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); color: white; border: 1px solid rgba(var(--rgb-accent), 0.3); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.6); background: var(--color-accent); color: #0f0f1a; }
a:not([class]) { color: var(--color-accent); transition: var(--transition); text-decoration: none; }
a:not([class]):hover { text-shadow: 0 0 8px rgba(var(--rgb-accent), 0.8); }

/* ========== 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; }

/* 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: 2rem; align-items: center; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

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

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

/* 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: var(--color-surface); border-radius: var(--radius-xl); padding: 3rem; text-align: center; border: 1px solid rgba(var(--rgb-accent), 0.3); animation: subtlePulse 3s ease-in-out infinite; }

/* Page Layout: centered-stage */
/* 限定宽度居中 */
.page-main { max-width: 840px; margin: 0 auto; }

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #7c3aed 0%, #4c1d95 40%, #0f0f1a 100%); }
header, .header, .navbar { background: rgba(15, 15, 26, 0.8); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(var(--rgb-accent), 0.15); }

/* 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; }
}